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How to get a certificate fingerprint as SHA-256, SHA-1 or MD5 using OpenSSL on mac

As per my old post ( http://anandmpandit.blogspot.in/2016/11/how-to-extract-signing-certificates.html ) , we can extract the binary signing certificates on mac using codesign tool. If you needed to get fingerprint details of the certificate in MD5, SHA1 or SHA256 format then you have run below steps on the extracted certificate file on macOS. SHA256: SHA256 Fingerprint=D3:0A:32:6C:77:77:93:B5:45:20:AC:C0:D4:7E:3A:84:34:50:96:54:08:7F:7D:63:4C:3E:06:3B:E8:1F:C1:90 SHA1: SHA1 Fingerprint=BF:2C:93:1F:BD:88:E5:4C:96:D8:86:D5:F1:E6:9B:B7:DE:76:51:62 MD5: MD5 Fingerprint=3C:A3:3B:76:6D:AE:3F:4B:4E:B2:AA:66:97:55:B8:76
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Calculating hash(md5, sha1...) of a hex string in Python

To calculate hash of hex string in python: In [ 1 ]: import hashlib In [ 2 ]: import binascii In [ 3 ]: hex_string = '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' In [ 4 ]: hashlib.md5(binascii.unhexlify(hex_string)).hexdigest() Out[ 4 ]: '0c6f3dd3d5d896e0f3f49dfae0437ba1' In [ 6 ]: hashlib.sha1(binascii.unhexlify(hex_string)).hexdigest() Out[ 6 ]: 'fc6d7e7925e18c5bed6314ea112a230948cfde75' In [ 7 ]: hashlib.sha256(...
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