diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c4377148f..2e1aec6587 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,7 +39,7 @@
   - Allow a conn open ack to succeed in the happy case ([#699])
 
 - [ibc-relayer]
-  - [nothing yet]
+  - Replaced `rust-crypto` & `bitcoin-wallet` deprecated dependencies ([#352])
 
 - [ibc-relayer-cli]
   - Hermes guide: improved installation guideline ([#672])
@@ -55,6 +55,7 @@
 - [ibc-relayer-cli]
   - [nothing yet]
 
+[#352]: https://github.com/informalsystems/ibc-rs/issues/352
 [#561]: https://github.com/informalsystems/ibc-rs/issues/561
 [#599]: https://github.com/informalsystems/ibc-rs/issues/599
 [#630]: https://github.com/informalsystems/ibc-rs/issues/630
diff --git a/Cargo.lock b/Cargo.lock
index ce16ccb234..5971fca820 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -53,9 +53,9 @@ dependencies = [
 
 [[package]]
 name = "adler"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bedc89c5c7b5550ffb9372eb5c5ffc7f9f705cc3f4a128bd4669b9745f555093"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "aho-corasick"
@@ -157,12 +157,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "autocfg"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
-
 [[package]]
 name = "autocfg"
 version = "1.0.1"
@@ -202,20 +196,6 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c7f7096bc256f5e5cb960f60dfc4f4ef979ca65abe7fb9d5a4f77150d3783d4"
 
-[[package]]
-name = "bitcoin"
-version = "0.21.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc34f963060a2091b4e285d8082e1946be35caf467e73b3155262c8357fb4595"
-dependencies = [
- "bech32 0.7.3",
- "bitcoin_hashes 0.7.6",
- "byteorder",
- "hex 0.3.2",
- "secp256k1 0.15.5",
- "serde",
-]
-
 [[package]]
 name = "bitcoin"
 version = "0.26.0"
@@ -223,32 +203,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ec5f88a446d66e7474a3b8fa2e348320b574463fb78d799d90ba68f79f48e0e"
 dependencies = [
  "bech32 0.7.3",
- "bitcoin_hashes 0.9.4",
- "secp256k1 0.20.1",
-]
-
-[[package]]
-name = "bitcoin-wallet"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b99191e69b23808ee29120a67cc4f6f1628c59ef3fdb48a779f4002c780f39c8"
-dependencies = [
- "bitcoin 0.21.0",
- "bitcoin_hashes 0.7.6",
- "rand 0.7.3",
- "rust-crypto",
- "secp256k1 0.15.5",
- "serde",
- "serde_derive",
-]
-
-[[package]]
-name = "bitcoin_hashes"
-version = "0.7.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b375d62f341cef9cd9e77793ec8f1db3fc9ce2e4d57e982c8fe697a2c16af3b6"
-dependencies = [
- "serde",
+ "bitcoin_hashes",
+ "secp256k1",
 ]
 
 [[package]]
@@ -274,54 +230,21 @@ dependencies = [
  "wyz",
 ]
 
-[[package]]
-name = "block-buffer"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0940dc441f31689269e10ac70eb1002a3a1d3ad1390e030043662eb7fe4688b"
-dependencies = [
- "block-padding",
- "byte-tools",
- "byteorder",
- "generic-array 0.12.3",
-]
-
 [[package]]
 name = "block-buffer"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4152116fd6e9dadb291ae18fc1ec3575ed6d84c29642d97890f4b4a3417297e4"
 dependencies = [
- "generic-array 0.14.4",
+ "generic-array",
 ]
 
-[[package]]
-name = "block-padding"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa79dedbb091f449f1f39e53edf88d5dbe95f895dae6135a8d7b881fb5af73f5"
-dependencies = [
- "byte-tools",
-]
-
-[[package]]
-name = "byte-tools"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
-
 [[package]]
 name = "byteorder"
 version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ae44d1a3d5a19df61dd0c8beb138458ac2a53a7ac09eba97d55592540004306b"
 
-[[package]]
-name = "bytes"
-version = "0.5.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
-
 [[package]]
 name = "bytes"
 version = "1.0.1"
@@ -336,9 +259,9 @@ checksum = "e6e9e01327e6c86e92ec72b1c798d4a94810f147209bbe3ffab6a86954937a6f"
 
 [[package]]
 name = "cc"
-version = "1.0.41"
+version = "1.0.67"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dae9c4b8fedcae85592ba623c4fd08cfdab3e3b72d6df780c6ead964a69bfff"
+checksum = "e3c69b077ad434294d3ce9f1f6143a2a4b89a8a2d54ef813d85003a4fd1137fd"
 
 [[package]]
 name = "cfg-if"
@@ -366,15 +289,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "cloudabi"
-version = "0.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "color-backtrace"
 version = "0.3.0"
@@ -388,9 +302,9 @@ dependencies = [
 
 [[package]]
 name = "const-oid"
-version = "0.4.3"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb27bc55bac783b7cfd5eafba8a3e94ff6d420fc4e04970a207980683145af83"
+checksum = "78be6f41573684a3c8818457240a855189aceff6482944eb361b520017766968"
 
 [[package]]
 name = "contracts"
@@ -457,7 +371,7 @@ version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
 dependencies = [
- "autocfg 1.0.1",
+ "autocfg",
  "cfg-if 0.1.10",
  "lazy_static",
 ]
@@ -468,18 +382,28 @@ version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7e9d99fa91428effe99c5c6d4634cdeba32b8cf784fc428a2a687f61a952c49"
 dependencies = [
- "autocfg 1.0.1",
+ "autocfg",
  "cfg-if 1.0.0",
  "lazy_static",
 ]
 
+[[package]]
+name = "crypto-mac"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b584a330336237c1eecd3e94266efb216c56ed91225d634cb2991c5f3fd1aeab"
+dependencies = [
+ "generic-array",
+ "subtle",
+]
+
 [[package]]
 name = "crypto-mac"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4857fd85a0c34b3c3297875b747c1e02e06b6a0ea32dd892d8192b9ce0813ea6"
 dependencies = [
- "generic-array 0.14.4",
+ "generic-array",
  "subtle",
 ]
 
@@ -490,7 +414,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f627126b946c25a4638eec0ea634fc52506dea98db118aae985118ce7c3d723f"
 dependencies = [
  "byteorder",
- "digest 0.9.0",
+ "digest",
  "rand_core 0.5.1",
  "subtle",
  "zeroize",
@@ -551,22 +475,13 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "digest"
-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
-dependencies = [
- "generic-array 0.12.3",
-]
-
 [[package]]
 name = "digest"
 version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3dd60d1080a57a05ab032377049e0591415d2b31afd7028356dbf3cc6dcb066"
 dependencies = [
- "generic-array 0.14.4",
+ "generic-array",
 ]
 
 [[package]]
@@ -624,7 +539,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41fbdb4ff710acb4db8ca29f93b897529ea6d6a45626d5183b47e012aa6ae7e4"
 dependencies = [
  "elliptic-curve",
- "hmac",
+ "hmac 0.10.1",
  "signature",
 ]
 
@@ -649,7 +564,7 @@ dependencies = [
  "rand 0.7.3",
  "serde",
  "serde_bytes",
- "sha2 0.9.3",
+ "sha2",
  "zeroize",
 ]
 
@@ -666,10 +581,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2db227e61a43a34915680bdda462ec0e212095518020a88a1f91acd16092c39"
 dependencies = [
  "bitvec",
- "digest 0.9.0",
+ "digest",
  "ff",
  "funty",
- "generic-array 0.14.4",
+ "generic-array",
  "group",
  "pkcs8",
  "rand_core 0.5.1",
@@ -677,34 +592,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "failure"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d32e9bd16cc02eae7db7ef620b392808b89f6a5e16bb3497d159c6b92a0f4f86"
-dependencies = [
- "backtrace",
- "failure_derive",
-]
-
-[[package]]
-name = "failure_derive"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "synstructure",
-]
-
-[[package]]
-name = "fake-simd"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
-
 [[package]]
 name = "ff"
 version = "0.8.0"
@@ -742,12 +629,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "fuchsia-cprng"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
-
 [[package]]
 name = "funty"
 version = "1.1.0"
@@ -855,12 +736,6 @@ dependencies = [
  "byteorder",
 ]
 
-[[package]]
-name = "gcc"
-version = "0.3.55"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f5f3913fa0bfe7ee1fd8248b6b9f42a5af4b9d65ec2dd2c3c26132b950ecfc2"
-
 [[package]]
 name = "generational-arena"
 version = "0.2.8"
@@ -870,15 +745,6 @@ dependencies = [
  "cfg-if 0.1.10",
 ]
 
-[[package]]
-name = "generic-array"
-version = "0.12.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c68f0274ae0e023facc3c97b2e00f076be70e254bc851d972503b328db79b2ec"
-dependencies = [
- "typenum",
-]
-
 [[package]]
 name = "generic-array"
 version = "0.14.4"
@@ -970,11 +836,11 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b67e66362108efccd8ac053abafc8b7a8d86a37e6e48fc4f6f7485eb5e9e6a5"
+checksum = "d832b01df74254fe364568d6ddc294443f61cbec82816b60904303af87efae78"
 dependencies = [
- "bytes 1.0.1",
+ "bytes",
  "fnv",
  "futures-core",
  "futures-sink",
@@ -985,7 +851,6 @@ dependencies = [
  "tokio",
  "tokio-util",
  "tracing",
- "tracing-futures",
 ]
 
 [[package]]
@@ -1006,7 +871,7 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72adf5a17a0952ecfcddf8d46d071271d5ee52e78443f07ba0b2dcfe3063a132"
 dependencies = [
- "bitcoin 0.26.0",
+ "bitcoin",
  "byteorder",
 ]
 
@@ -1021,15 +886,19 @@ dependencies = [
 
 [[package]]
 name = "hex"
-version = "0.3.2"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
+checksum = "644f9158b2f133fd50f5fb3242878846d9eb792e445c893805ff0e3824006e35"
 
 [[package]]
-name = "hex"
-version = "0.4.2"
+name = "hmac"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "644f9158b2f133fd50f5fb3242878846d9eb792e445c893805ff0e3824006e35"
+checksum = "126888268dcc288495a26bf004b38c5fdbb31682f992c84ceb046a1f0fe38840"
+dependencies = [
+ "crypto-mac 0.8.0",
+ "digest",
+]
 
 [[package]]
 name = "hmac"
@@ -1037,8 +906,8 @@ version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c1441c6b1e930e2817404b5046f1f989899143a12bf92de603b69f4e0aee1e15"
 dependencies = [
- "crypto-mac",
- "digest 0.9.0",
+ "crypto-mac 0.10.0",
+ "digest",
 ]
 
 [[package]]
@@ -1047,7 +916,7 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7245cd7449cc792608c3c8a9eaf69bd4eabbabf802713748fd739c98b82f0747"
 dependencies = [
- "bytes 1.0.1",
+ "bytes",
  "fnv",
  "itoa",
 ]
@@ -1058,7 +927,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2861bd27ee074e5ee891e8b539837a9430012e249d7f0ca2d795650f579c1994"
 dependencies = [
- "bytes 1.0.1",
+ "bytes",
  "http",
 ]
 
@@ -1096,7 +965,7 @@ version = "0.14.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8e946c2b1349055e0b72ae281b238baf1a3ea7307c7e9f9d64673bdd9c26ac7"
 dependencies = [
- "bytes 1.0.1",
+ "bytes",
  "futures-channel",
  "futures-core",
  "futures-util",
@@ -1120,12 +989,11 @@ version = "0.1.1"
 dependencies = [
  "anomaly",
  "bech32 0.8.0",
- "bytes 1.0.1",
+ "bytes",
  "chrono",
  "dyn-clonable",
  "ibc-proto",
- "ics23",
- "prost 0.7.0",
+ "prost",
  "prost-types",
  "regex",
  "serde",
@@ -1146,8 +1014,8 @@ name = "ibc-proto"
 version = "0.7.1"
 dependencies = [
  "anomaly",
- "bytes 1.0.1",
- "prost 0.7.0",
+ "bytes",
+ "prost",
  "prost-types",
  "tendermint-proto",
  "thiserror",
@@ -1161,9 +1029,8 @@ dependencies = [
  "anomaly",
  "async-trait",
  "bech32 0.8.0",
- "bitcoin 0.26.0",
- "bitcoin-wallet",
- "bytes 1.0.1",
+ "bitcoin",
+ "bytes",
  "crossbeam-channel 0.5.0",
  "dirs-next",
  "dyn-clonable",
@@ -1171,21 +1038,22 @@ dependencies = [
  "funty",
  "futures",
  "hdpath",
- "hex 0.4.2",
+ "hex",
  "humantime-serde",
  "ibc",
  "ibc-proto",
  "itertools 0.10.0",
  "k256",
- "prost 0.7.0",
+ "prost",
  "prost-types",
  "retry",
- "rust-crypto",
+ "ripemd160",
  "serde",
  "serde_cbor",
  "serde_derive",
  "serde_json",
  "serial_test",
+ "sha2",
  "sled",
  "subtle-encoding",
  "tendermint",
@@ -1194,6 +1062,7 @@ dependencies = [
  "tendermint-rpc",
  "tendermint-testgen",
  "thiserror",
+ "tiny-bip39",
  "tokio",
  "toml",
  "tonic",
@@ -1210,12 +1079,12 @@ dependencies = [
  "dirs-next",
  "futures",
  "gumdrop 0.7.0",
- "hex 0.4.2",
+ "hex",
  "ibc",
  "ibc-proto",
  "ibc-relayer",
  "once_cell",
- "prost 0.7.0",
+ "prost",
  "prost-types",
  "serde",
  "serde_derive",
@@ -1233,21 +1102,6 @@ dependencies = [
  "tracing-subscriber 0.2.16",
 ]
 
-[[package]]
-name = "ics23"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d020eb9116abc920452cb63aec8ff662483bf2b75199680046057389b1128988"
-dependencies = [
- "bytes 0.5.6",
- "failure",
- "hex 0.4.2",
- "prost 0.6.1",
- "ripemd160",
- "sha2 0.8.2",
- "sha3",
-]
-
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -1271,7 +1125,7 @@ version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4fb1fa934250de4de8aef298d81c729a7d33d8c239daa3a7575e6b92bfc7313b"
 dependencies = [
- "autocfg 1.0.1",
+ "autocfg",
  "hashbrown",
 ]
 
@@ -1281,7 +1135,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f97967975f448f1a7ddb12b0bc41069d09ed6a1c161a92687e057325db35d413"
 dependencies = [
- "bytes 1.0.1",
+ "bytes",
 ]
 
 [[package]]
@@ -1293,15 +1147,6 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
-[[package]]
-name = "itertools"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f56a2d0bc861f9165be4eb3442afd3c236d8a98afd426f65d92324ae1091a484"
-dependencies = [
- "either",
-]
-
 [[package]]
 name = "itertools"
 version = "0.9.0"
@@ -1335,15 +1180,9 @@ dependencies = [
  "cfg-if 1.0.0",
  "ecdsa",
  "elliptic-curve",
- "sha2 0.9.3",
+ "sha2",
 ]
 
-[[package]]
-name = "keccak"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67c21572b4949434e4fc1e1978b99c5f77064153c59d998bf13ecd96fb5ecba7"
-
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -1352,9 +1191,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.86"
+version = "0.2.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7282d924be3275cec7f6756ff4121987bc6481325397dde6ba3e7802b1a8b1c"
+checksum = "265d751d31d6780a3f956bb5b8022feba2d94eeee5a84ba64f4212eedca42213"
 
 [[package]]
 name = "lock_api"
@@ -1407,7 +1246,7 @@ version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "157b4208e3059a8f9e78d559edc658e13df41410cb3ae03979c83130067fdd87"
 dependencies = [
- "autocfg 1.0.1",
+ "autocfg",
 ]
 
 [[package]]
@@ -1417,7 +1256,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
 dependencies = [
  "adler",
- "autocfg 1.0.1",
+ "autocfg",
 ]
 
 [[package]]
@@ -1469,7 +1308,7 @@ version = "0.1.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
 dependencies = [
- "autocfg 1.0.1",
+ "autocfg",
  "num-traits",
 ]
 
@@ -1479,7 +1318,7 @@ version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
 dependencies = [
- "autocfg 1.0.1",
+ "autocfg",
 ]
 
 [[package]]
@@ -1500,15 +1339,12 @@ checksum = "a9a7ab5d64814df0fe4a4b5ead45ed6c5f181ee3ff04ba344313a6c80446c5d4"
 
 [[package]]
 name = "once_cell"
-version = "1.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10acf907b94fc1b1a152d08ef97e7759650268cf986bf127f387e602b02c7e5a"
-
-[[package]]
-name = "opaque-debug"
-version = "0.2.3"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
+checksum = "ea78b9742c52ac729753c1590e9adc5248ea9bdaf974597efd46c74cfaa5fb54"
+dependencies = [
+ "parking_lot",
+]
 
 [[package]]
 name = "opaque-debug"
@@ -1550,6 +1386,15 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "pbkdf2"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "216eaa586a190f0a738f2f918511eecfa90f13295abec0e457cdebcceda80cbd"
+dependencies = [
+ "crypto-mac 0.8.0",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -1624,37 +1469,14 @@ dependencies = [
  "unicode-xid",
 ]
 
-[[package]]
-name = "prost"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce49aefe0a6144a45de32927c77bd2859a5f7677b55f220ae5b744e87389c212"
-dependencies = [
- "bytes 0.5.6",
- "prost-derive 0.6.1",
-]
-
 [[package]]
 name = "prost"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e6984d2f1a23009bd270b8bb56d0926810a3d483f59c987d77969e9d8e840b2"
 dependencies = [
- "bytes 1.0.1",
- "prost-derive 0.7.0",
-]
-
-[[package]]
-name = "prost-derive"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "537aa19b95acde10a12fec4301466386f757403de4cd4e5b4fa78fb5ecb18f72"
-dependencies = [
- "anyhow",
- "itertools 0.8.2",
- "proc-macro2",
- "quote",
- "syn",
+ "bytes",
+ "prost-derive",
 ]
 
 [[package]]
@@ -1676,8 +1498,8 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b518d7cdd93dab1d1122cf07fa9a60771836c668dde9d9e2a139f957f0d9f1bb"
 dependencies = [
- "bytes 1.0.1",
- "prost 0.7.0",
+ "bytes",
+ "prost",
 ]
 
 [[package]]
@@ -1695,48 +1517,6 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "64de9a0c5361e034f1aefc9f71a86871ec870e766fe31a009734a989b329286a"
 
-[[package]]
-name = "rand"
-version = "0.3.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64ac302d8f83c0c1974bf758f6b041c6c8ada916fbb44a609158ca8b064cc76c"
-dependencies = [
- "libc",
- "rand 0.4.6",
-]
-
-[[package]]
-name = "rand"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293"
-dependencies = [
- "fuchsia-cprng",
- "libc",
- "rand_core 0.3.1",
- "rdrand",
- "winapi",
-]
-
-[[package]]
-name = "rand"
-version = "0.6.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d71dacdc3c88c1fde3885a3be3fbab9f35724e6ce99467f7d9c5026132184ca"
-dependencies = [
- "autocfg 0.1.7",
- "libc",
- "rand_chacha 0.1.1",
- "rand_core 0.4.2",
- "rand_hc 0.1.0",
- "rand_isaac",
- "rand_jitter",
- "rand_os",
- "rand_pcg",
- "rand_xorshift",
- "winapi",
-]
-
 [[package]]
 name = "rand"
 version = "0.7.3"
@@ -1762,16 +1542,6 @@ dependencies = [
  "rand_hc 0.3.0",
 ]
 
-[[package]]
-name = "rand_chacha"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "556d3a1ca6600bfcbab7c7c91ccb085ac7fbbcd70e008a98742e7847f4f7bcef"
-dependencies = [
- "autocfg 0.1.7",
- "rand_core 0.3.1",
-]
-
 [[package]]
 name = "rand_chacha"
 version = "0.2.2"
@@ -1792,21 +1562,6 @@ dependencies = [
  "rand_core 0.6.2",
 ]
 
-[[package]]
-name = "rand_core"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
-dependencies = [
- "rand_core 0.4.2",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
-
 [[package]]
 name = "rand_core"
 version = "0.5.1"
@@ -1825,15 +1580,6 @@ dependencies = [
  "getrandom 0.2.2",
 ]
 
-[[package]]
-name = "rand_hc"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b40677c7be09ae76218dc623efbf7b18e34bced3f38883af07bb75630a21bc4"
-dependencies = [
- "rand_core 0.3.1",
-]
-
 [[package]]
 name = "rand_hc"
 version = "0.2.0"
@@ -1852,68 +1598,6 @@ dependencies = [
  "rand_core 0.6.2",
 ]
 
-[[package]]
-name = "rand_isaac"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ded997c9d5f13925be2a6fd7e66bf1872597f759fd9dd93513dd7e92e5a5ee08"
-dependencies = [
- "rand_core 0.3.1",
-]
-
-[[package]]
-name = "rand_jitter"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1166d5c91dc97b88d1decc3285bb0a99ed84b05cfd0bc2341bdf2d43fc41e39b"
-dependencies = [
- "libc",
- "rand_core 0.4.2",
- "winapi",
-]
-
-[[package]]
-name = "rand_os"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071"
-dependencies = [
- "cloudabi",
- "fuchsia-cprng",
- "libc",
- "rand_core 0.4.2",
- "rdrand",
- "winapi",
-]
-
-[[package]]
-name = "rand_pcg"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abf9b09b01790cfe0364f52bf32995ea3c39f4d2dd011eac241d2914146d0b44"
-dependencies = [
- "autocfg 0.1.7",
- "rand_core 0.4.2",
-]
-
-[[package]]
-name = "rand_xorshift"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cbf7e9e623549b0e21f6e97cf8ecf247c1a8fd2e8a992ae265314300b2455d5c"
-dependencies = [
- "rand_core 0.3.1",
-]
-
-[[package]]
-name = "rdrand"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
-dependencies = [
- "rand_core 0.3.1",
-]
-
 [[package]]
 name = "redox_syscall"
 version = "0.2.5"
@@ -1981,26 +1665,13 @@ dependencies = [
 
 [[package]]
 name = "ripemd160"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ad5112e0dbbb87577bfbc56c42450235e3012ce336e29c5befd7807bd626da4a"
-dependencies = [
- "block-buffer 0.7.3",
- "digest 0.8.1",
- "opaque-debug 0.2.3",
-]
-
-[[package]]
-name = "rust-crypto"
-version = "0.2.36"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a"
+checksum = "2eca4ecc81b7f313189bf73ce724400a07da2a6dac19588b03c8bd76a2dcc251"
 dependencies = [
- "gcc",
- "libc",
- "rand 0.3.23",
- "rustc-serialize",
- "time",
+ "block-buffer",
+ "digest",
+ "opaque-debug",
 ]
 
 [[package]]
@@ -2010,10 +1681,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e3bad0ee36814ca07d7968269dd4b7ec89ec2da10c4bb613928d3077083c232"
 
 [[package]]
-name = "rustc-serialize"
-version = "0.3.24"
+name = "rustc-hash"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
+checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
 [[package]]
 name = "ryu"
@@ -2036,16 +1707,6 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
-[[package]]
-name = "secp256k1"
-version = "0.15.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d311229f403d64002e9eed9964dfa5a0a0c1ac443344f7546bf48e916c6053a"
-dependencies = [
- "cc",
- "rand 0.6.5",
-]
-
 [[package]]
 name = "secp256k1"
 version = "0.20.1"
@@ -2179,23 +1840,11 @@ version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dfebf75d25bd900fd1e7d11501efab59bc846dbc76196839663e6637bba9f25f"
 dependencies = [
- "block-buffer 0.9.0",
+ "block-buffer",
  "cfg-if 1.0.0",
  "cpuid-bool",
- "digest 0.9.0",
- "opaque-debug 0.3.0",
-]
-
-[[package]]
-name = "sha2"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
-dependencies = [
- "block-buffer 0.7.3",
- "digest 0.8.1",
- "fake-simd",
- "opaque-debug 0.2.3",
+ "digest",
+ "opaque-debug",
 ]
 
 [[package]]
@@ -2204,24 +1853,11 @@ version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa827a14b29ab7f44778d14a88d3cb76e949c45083f7dbfa507d0cb699dc12de"
 dependencies = [
- "block-buffer 0.9.0",
+ "block-buffer",
  "cfg-if 1.0.0",
  "cpuid-bool",
- "digest 0.9.0",
- "opaque-debug 0.3.0",
-]
-
-[[package]]
-name = "sha3"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd26bc0e7a2e3a7c959bc494caf58b72ee0c71d67704e9520f736ca7e4853ecf"
-dependencies = [
- "block-buffer 0.7.3",
- "byte-tools",
- "digest 0.8.1",
- "keccak",
- "opaque-debug 0.2.3",
+ "digest",
+ "opaque-debug",
 ]
 
 [[package]]
@@ -2258,7 +1894,7 @@ version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "29f060a7d147e33490ec10da418795238fd7545bba241504d6b31a409f2e6210"
 dependencies = [
- "digest 0.9.0",
+ "digest",
  "rand_core 0.5.1",
 ]
 
@@ -2394,20 +2030,20 @@ checksum = "b1d8c80447d80ba50fe72c5fb424bdd139c58e71a445ab64a906b8fcd2c27799"
 dependencies = [
  "anomaly",
  "async-trait",
- "bytes 1.0.1",
+ "bytes",
  "chrono",
  "ed25519",
  "ed25519-dalek",
  "futures",
  "num-traits",
  "once_cell",
- "prost 0.7.0",
+ "prost",
  "prost-types",
  "serde",
  "serde_bytes",
  "serde_json",
  "serde_repr",
- "sha2 0.9.3",
+ "sha2",
  "signature",
  "subtle",
  "subtle-encoding",
@@ -2446,11 +2082,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32afe47d9e66ac1ed94adaf389fd3ad42a06782508d0e7b2a8053738d45c2f2a"
 dependencies = [
  "anomaly",
- "bytes 1.0.1",
+ "bytes",
  "chrono",
  "num-derive",
  "num-traits",
- "prost 0.7.0",
+ "prost",
  "prost-types",
  "serde",
  "serde_bytes",
@@ -2466,7 +2102,7 @@ checksum = "f722a9797e443cb3886a80535b3654bfbd7a961cbcc5510fc7247a5df6a0ef1c"
 dependencies = [
  "async-trait",
  "async-tungstenite",
- "bytes 1.0.1",
+ "bytes",
  "chrono",
  "futures",
  "getrandom 0.1.16",
@@ -2549,6 +2185,24 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "tiny-bip39"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9e44c4759bae7f1032e286a7ef990bd9ed23fe831b7eeba0beb97484c2e59b8"
+dependencies = [
+ "anyhow",
+ "hmac 0.8.1",
+ "once_cell",
+ "pbkdf2",
+ "rand 0.7.3",
+ "rustc-hash",
+ "sha2",
+ "thiserror",
+ "unicode-normalization",
+ "zeroize",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.1.1"
@@ -2570,8 +2224,8 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8190d04c665ea9e6b6a0dc45523ade572c088d2e6566244c1122671dbf4ae3a"
 dependencies = [
- "autocfg 1.0.1",
- "bytes 1.0.1",
+ "autocfg",
+ "bytes",
  "libc",
  "memchr",
  "mio",
@@ -2612,7 +2266,7 @@ version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebb7cb2f00c5ae8df755b252306272cd1790d39728363936e01827e11f0b017b"
 dependencies = [
- "bytes 1.0.1",
+ "bytes",
  "futures-core",
  "futures-sink",
  "log",
@@ -2638,7 +2292,7 @@ dependencies = [
  "async-stream",
  "async-trait",
  "base64",
- "bytes 1.0.1",
+ "bytes",
  "futures-core",
  "futures-util",
  "h2",
@@ -2647,8 +2301,8 @@ dependencies = [
  "hyper",
  "percent-encoding",
  "pin-project",
- "prost 0.7.0",
- "prost-derive 0.7.0",
+ "prost",
+ "prost-derive",
  "tokio",
  "tokio-stream",
  "tokio-util",
@@ -2660,9 +2314,9 @@ dependencies = [
 
 [[package]]
 name = "tower"
-version = "0.4.5"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "713c629c07a3a97f741c140e474e7304294fabec66a43a33f0832e98315ab07f"
+checksum = "f715efe02c0862926eb463e49368d38ddb119383475686178e32e26d15d06a66"
 dependencies = [
  "futures-core",
  "futures-util",
@@ -2807,7 +2461,7 @@ checksum = "8ada8297e8d70872fa9a551d93250a9f407beb9f37ef86494eb20012a2ff7c24"
 dependencies = [
  "base64",
  "byteorder",
- "bytes 1.0.1",
+ "bytes",
  "http",
  "httparse",
  "input_buffer",
diff --git a/modules/Cargo.toml b/modules/Cargo.toml
index 9fcda623bd..864dcb2837 100644
--- a/modules/Cargo.toml
+++ b/modules/Cargo.toml
@@ -23,7 +23,6 @@ mocks = [ "tendermint-testgen" ]
 [dependencies]
 # Proto definitions for all IBC-related interfaces, e.g., connections or channels.
 ibc-proto = { version = "0.7.1", path = "../proto" }
-ics23 = "0.6.0"
 anomaly = "0.2.0"
 chrono = "0.4"
 thiserror = "1.0.24"
diff --git a/relayer/Cargo.toml b/relayer/Cargo.toml
index 5ae5927597..107b398c53 100644
--- a/relayer/Cargo.toml
+++ b/relayer/Cargo.toml
@@ -43,9 +43,10 @@ crossbeam-channel = "0.5.0"
 k256 = { version = "0.7.1", features = ["ecdsa-core", "ecdsa", "sha256"]}
 hex = "0.4"
 bitcoin = { version = "=0.26" }
-bitcoin-wallet = "1.1.0"
+tiny-bip39 = "0.8.0"
 hdpath = { version = "0.6.0", features = ["with-bitcoin"] }
-rust-crypto = "0.2.36"
+sha2 = "0.9.3"
+ripemd160 = "0.9.1"
 bech32 = "0.8.0"
 itertools = "0.10.0"
 dyn-clonable = "0.9.0"
diff --git a/relayer/src/auth/tx.rs b/relayer/src/auth/tx.rs
deleted file mode 100644
index 49818c73c7..0000000000
--- a/relayer/src/auth/tx.rs
+++ /dev/null
@@ -1,130 +0,0 @@
-// use ibc_proto::tx::v1beta1::{Tx, TxBody, AuthInfo, SignDoc};
-// use ibc::tx_msg::Msg;
-//use crate::error::Error;
-// use ibc_proto::tx::v1beta1::mode_info::{Single, Sum};
-// use ibc_proto::tx::v1beta1::{AuthInfo, ModeInfo, SignDoc, SignerInfo, Tx, TxBody};
-// use ibc::tx_msg::Msg;
-// use ibc_proto::base::crypto::v1beta1::public_key::Sum as PK_Sum;
-// use ibc_proto::base::crypto::v1beta1::PublicKey;
-// use tendermint::{account::Id, chain::Id as ChainId, net::Address};
-// use hex;
-// use std::str::FromStr;
-// Signer
-// use k256::{
-//     ecdsa::{signature::Signer, signature::Verifier, Signature, SigningKey, VerifyKey},
-//     EncodedPoint, SecretKey,
-// };
-
-// pub struct TxWrapper {
-//     tx: Tx,
-//     body: Vec<u8>,
-//     auth_info: Vec<u8>,
-// }
-
-// pub struct TxBuilder {
-//
-// }
-
-//impl TxBuilder {
-// pub fn build_tx<T: std::error::Error, U: Msg<ValidationError = T>>(msg: Vec<Box<U>>, memo: String) -> Result<TxBody, Error> {
-
-// Create TxBody
-// let body = TxBody {
-//     messages: proto_msgs,
-//     memo: "".to_string(),
-//     timeout_height: 0,
-//     extension_options: Vec::<prost_types::Any>::new(),
-//     non_critical_extension_options: Vec::<prost_types::Any>::new(),
-// };
-//
-// // A protobuf serialization of a TxBody
-// let mut body_buf = Vec::new();
-// prost::Message::encode(&body, &mut body_buf).unwrap();
-
-// TODO: move this logic to tx builder
-// let sum = Some(PK_Sum::Secp256k1(pubkey_bytes));
-//
-// let pk = Some(PublicKey { sum });
-//
-// let single = Single { mode: 1 };
-// let sum_single = Some(Sum::Single(single));
-// let mode = Some(ModeInfo { sum: sum_single });
-//
-// let signer_info = SignerInfo {
-//     public_key: pk,
-//     mode_info: mode,
-//     sequence: 0,
-// };
-//
-// let auth_info = AuthInfo {
-//     signer_infos: vec![signer_info],
-//     fee: None,
-// };
-//
-// // A protobuf serialization of a AuthInfo
-// let mut auth_buf = Vec::new();
-// prost::Message::encode(&auth_info, &mut auth_buf).unwrap();
-//
-// let sign_doc = SignDoc {
-//     body_bytes: body_buf.clone(),
-//     auth_info_bytes: auth_buf.clone(),
-//     chain_id: chain_config.clone().id.to_string(),
-//     account_number: account_number,
-// };
-//
-// // A protobuf serialization of a AuthInfo
-// let mut signdoc_buf = Vec::new();
-// prost::Message::encode(&sign_doc, &mut signdoc_buf).unwrap();
-//
-// let signature: Signature = signing_key.sign(&signdoc_buf);
-//
-// status_info!("Signed Tx", "{:?}", signed_doc);
-//
-// let tx_raw = TxRaw {
-//     body_bytes,
-//     auth_info_bytes: auth_bytes,
-//     signatures: vec![signature.as_ref().to_vec()],
-// };
-//
-// let mut txraw_buf = Vec::new();
-// prost::Message::encode(&tx_raw, &mut txraw_buf).unwrap();
-// println!("{:?}", txraw_buf);
-// }
-
-// pub fn get_sign_doc(body: TxBody, auth: AuthInfo) -> Result<SignDoc, Error> {
-//     // A protobuf serialization of a TxBody
-//     let mut body_buf = Vec::new();
-//     prost::Message::encode(&body, &mut body_buf).unwrap();
-//
-//     // A protobuf serialization of a AuthInfo
-//     let mut auth_buf = Vec::new();
-//     prost::Message::encode(&auth_info, &mut auth_buf).unwrap();
-//
-//     let sign_doc = SignDoc {
-//         body_bytes: body_buf.clone(),
-//         auth_info_bytes: auth_buf.clone(),
-//         chain_id: chain_config.clone().id.to_string(),
-//         account_number: account_number,
-//     };
-//
-//     Ok(signdoc)
-// }
-
-// convenience function to get address from private key
-
-//     fn get_account(pk: Vec<u8>) -> Vec<u8> {
-//         use crypto::digest::Digest;
-//         use crypto::ripemd160::Ripemd160;
-//         use crypto::sha2::Sha256;
-//         let mut seed = Sha256::new();
-//         seed.input(pk.as_slice());
-//         let mut bytes = vec![0; seed.output_bytes()];
-//         seed.result(&mut bytes);
-//
-//         let mut hash = Ripemd160::new();
-//         hash.input(bytes.as_slice());
-//         let mut acct = vec![0; hash.output_bytes()];
-//         hash.result(&mut acct);
-//         acct.to_vec()
-//     }
-//}
diff --git a/relayer/src/keyring/store.rs b/relayer/src/keyring/store.rs
index 2b6e6a1cb5..9083b962cd 100644
--- a/relayer/src/keyring/store.rs
+++ b/relayer/src/keyring/store.rs
@@ -6,15 +6,17 @@ use std::io::{Read, Write};
 use std::path::{Path, PathBuf};
 
 use bech32::{ToBase32, Variant};
+use bip39::{Language, Mnemonic, Seed};
 use bitcoin::{
     network::constants::Network,
     secp256k1::Secp256k1,
     util::bip32::{DerivationPath, ExtendedPrivKey, ExtendedPubKey},
 };
-use bitcoin_wallet::mnemonic::Mnemonic;
 use hdpath::StandardHDPath;
 use k256::ecdsa::{signature::Signer, Signature, SigningKey};
+use ripemd160::Ripemd160;
 use serde_json::Value;
+use sha2::{Digest, Sha256};
 use tendermint::account::Id as AccountId;
 
 use crate::config::ChainConfig;
@@ -128,14 +130,13 @@ impl KeyRingOperations for KeyRing {
 
     /// Add a key entry in the store using a mnemonic.
     fn key_from_mnemonic(&self, mnemonic_words: &str) -> Result<KeyEntry, Error> {
-        // Generate seed from mnemonic
-        let mnemonic =
-            Mnemonic::from_str(mnemonic_words).map_err(|e| Kind::InvalidMnemonic.context(e))?;
-        let seed = mnemonic.to_seed(Some(""));
+        let mnemonic = Mnemonic::from_phrase(mnemonic_words, Language::English)
+            .map_err(|e| Kind::InvalidMnemonic.context(e))?;
+        let seed = Seed::new(&mnemonic, "");
 
         // Get Private Key from seed and standard derivation path
         let hd_path = StandardHDPath::try_from("m/44'/118'/0'/0/0").unwrap();
-        let private_key = ExtendedPrivKey::new_master(Network::Bitcoin, &seed.0)
+        let private_key = ExtendedPrivKey::new_master(Network::Bitcoin, seed.as_bytes())
             .and_then(|k| k.derive_priv(&Secp256k1::new(), &DerivationPath::from(hd_path)))
             .map_err(|e| Kind::PrivateKey.context(e))?;
 
@@ -270,19 +271,18 @@ impl KeyRingOperations for KeyRing {
 
 /// Return an address from a Public Key
 fn get_address(pk: ExtendedPubKey) -> Vec<u8> {
-    use crypto::digest::Digest;
-    use crypto::ripemd160::Ripemd160;
-    use crypto::sha2::Sha256;
-
-    let mut sha256 = Sha256::new();
-    sha256.input(pk.public_key.to_bytes().as_slice());
-    let mut bytes = vec![0; sha256.output_bytes()];
-    sha256.result(&mut bytes);
-    let mut hash = Ripemd160::new();
-    hash.input(bytes.as_slice());
-    let mut acct = vec![0; hash.output_bytes()];
-    hash.result(&mut acct);
-    acct.to_vec()
+    let mut hasher = Sha256::new();
+    hasher.update(pk.public_key.to_bytes().as_slice());
+
+    // Read hash digest over the public key bytes & consume hasher
+    let pk_hash = hasher.finalize();
+
+    // Plug the hash result into the next crypto hash function.
+    let mut rip_hasher = Ripemd160::new();
+    rip_hasher.update(pk_hash);
+    let rip_result = rip_hasher.finalize();
+
+    rip_result.to_vec()
 }
 
 fn get_test_backend_folder(chain_config: &ChainConfig) -> Result<PathBuf, Error> {