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Gets a SHA1 fingerprint from an x509 certificate using Python and OpenSSL crypto module
from OpenSSL.crypto import load_certificate, FILETYPE_PEM
cert_file_string = open("esx.crt", "rb").read()
cert = load_certificate(FILETYPE_PEM, cert_file_string)
sha1_fingerprint = cert.digest("sha1")
print sha1_fingerprint
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