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Showing posts with the label Cryptography
Pyopenssl's Pkcs7 Object Provide Very Little Information, How Can I Get The Sha1 Digest Of The Public Key In The Signature

Pyopenssl's Pkcs7 Object Provide Very Little Information, How Can I Get The Sha1 Digest Of The Public Key In The Signature

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I would like to parse android apk's CERT.RSA in Python. I know it can be parsed with pyOpenSSL … Read more Pyopenssl's Pkcs7 Object Provide Very Little Information, How Can I Get The Sha1 Digest Of The Public Key In The Signature
Does An Android Cryptography Provider Need To Be Signed?

Does An Android Cryptography Provider Need To Be Signed?

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In Java SE from Oracle, it is required for a provider of cryptographic functions to be signed. This… Read more Does An Android Cryptography Provider Need To Be Signed?
Caused By: Java.security.nosuchproviderexception: No Such Provider: Crypto - Android N

Caused By: Java.security.nosuchproviderexception: No Such Provider: Crypto - Android N

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Seems like 'Crypto' provider has been removed in Android N. My application crashing because… Read more Caused By: Java.security.nosuchproviderexception: No Such Provider: Crypto - Android N
Android - Removing Padded Bits In Decryption

Android - Removing Padded Bits In Decryption

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I'm working on a security application using my own customized cryptography method, and having a… Read more Android - Removing Padded Bits In Decryption