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Implement experimental support for public key pinning #24

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sethmlarson opened this issue Sep 30, 2021 · 0 comments · Fixed by #27

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sethmlarson commented Sep 30, 2021 •

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In CPython 3.10 there were private APIs SSLObject.get_verified_chain() and _ssl.Certificate.public_bytes(_ssl.ENCODING_DER) methods added.

Ref: python/cpython#25467

import hashlib
import _ssl
fingerprints = [hashlib.sha256(cert.public_bytes(_ssl.ENCODING_DER)).hexdigest() for cert in sock._sslobj.get_verified_chain()]

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sethmlarson mentioned this issue

Add experimental support for pinning certificates in the chain #27

Merged

sethmlarson closed this as completed in #27

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