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我試圖從加載的x509證書中提取簽名。我提取了一切(發行者,主題,PEM,SignatureAlgorithm等)。我已經找到了這個,但已經不足了。任何幫助將不勝感激!如何從x509證書中提取簽名
from OpenSSL import crypto
certobj = crypto.load_certificate(crypto.FILETYPE_ASN1, cert)
issuer = certobj.get_issuer()
subject = certobj.get_subject()
certDetails = {
"SerialNumber": certobj.get_serial_number(),
"Signature": None, # <-- This is what I am trying to get!
"SignatureAlgorithm": certobj.get_signature_algorithm(),
"CertificatePEM": crypto.dump_certificate(crypto.FILETYPE_PEM, certobj),
"SubjectPublicKeyPEM": crypto.dump_publickey(crypto.FILETYPE_PEM, certobj.get_pubkey()),
"Version": certobj.get_version()
}
你在尋找公鑰嗎?這實際上允許你發送一個可信的消息到CA:[''certobj.get_pubkey()'](https://pyopenssl.readthedocs.io/en/latest/api/crypto.html#OpenSSL.crypto.X509 .get_pubkey) – Aaron
@Aaron號我有存儲在'certDetails.SubjectPublicKeyPEM'中的公鑰。我正在尋找簽名值本身。 – cmeadows