[openssl-users] Password based key derivation
dpb795795 at gmail.com
Thu Apr 9 19:13:05 UTC 2015
Any help on following questions is appreciated.
1) Can the function PKCS5_PBKDF2_HMAC_SHA1() in 0.9.8zf be used to derive a key for AES-256-CBC encryption from user supplied passphrase?
2) Is PKCS5_PBKDF2_HMAC_SHA1() preferable to EVP_BytesToKey() and why ? I see PKCS5_PBKDF2_HMAC_SHA1() uses HMACs and is part of standard.
On debugging, could see PKCS5_PBKDF2_HMAC_SHA1() working with 256-bit key but after returning from the function, the data in the stack frame gets corrupted for me and overwrites few other parameters leading to Seg Fault.
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