Add EdDSA signature length constant

EdDSA signatures must be 64 bytes long as per RFC 8032 5.1.6. (6). This commit adds a constant for this length which may be used to to pad shorter signatures.
secure-systems-lab · Feb 24, 2021 · 8a2e94d · 8a2e94d
1 parent 7024a5b
commit 8a2e94d
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/securesystemslib/gpg/eddsa.py b/securesystemslib/gpg/eddsa.py
@@ -37,6 +37,8 @@
 # EdDSA Point Format (see RFC4880-bis8 13.3.)
 ED25519_PUBLIC_KEY_LENGTH = 33
 ED25519_PUBLIC_KEY_PREFIX = 0x40
+# EdDSA signature byte length (see RFC 8032 5.1.6. (6))
+ED25519_SIG_LENGTH = 64