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tlsfuzzer / python-ecdsa

pure-python ECDSA signature/verification and ECDH key agreement
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bug, in VerifyingKey raise UnexpectedDER("wanted type 'object' (0x06), got 0x%02x" % n) #311

Closed marti1125 closed 1 year ago

marti1125 commented 1 year ago

Steps private key openssl ecparam -name secp384r1 -genkey -out pri_key.pem public key openssl req -new -x509 -days 356 -key pri_key.pem -out certificate.pem -subj "/C=MX/ST=CDMX/L=MH/O=CDC/CN=CDC" 

with open("/etc/certs/certificate.pem", "r") as public_key:
    vk = VerifyingKey.from_pem(public_key.read())

with open("/etc/certs/pri_key.pem", "r") as p_key:
    sk = SigningKey.from_pem(p_key.read(), hashlib.sha384)

d = b"message"

signature = sk.sign_deterministic(d, sigencode=sigencode_der)

getting error when try to open certificate.pem

tomato42 commented 1 year ago

It's not a bug, it's missing functionality. Loading public keys from X.509 certificates is not supported. Duplicate of #119

marti1125 commented 1 year ago

Thank you for your replay!