Aaron Boxer <[email protected]> writes: > Hello! > > I am porting some openssl code to nettle. It involves working with SHA1 > keys. > What would people recommend as a guide to doing this port?
[...] > https://github.com/GrokImageCompression/asdcplib/blob/master/src/KM_prng.cpp For SHA1 and AES, start by checking the Nettle manual and the sha1 example program: https://www.lysator.liu.se/~nisse/nettle/nettle.html#Example https://www.lysator.liu.se/~nisse/nettle/nettle.html#Conventions https://www.lysator.liu.se/~nisse/nettle/nettle.html#AES https://www.lysator.liu.se/~nisse/nettle/nettle.html#SHA1 Then your Gen_FIPS_186_Value function also uses some basic bignum arithmetic. You'd need to rewrite this to use GNU GMP, and I guess you'd want to use the C++ interface, gmpxx.h, which I'm not very familiar with. See https://gmplib.org/manual/C_002b_002b-Interface-Integers.html#C_002b_002b-Interface-Integers Not sure how to do base256 conversion (the BN_bin2bn and BN_bn2bin in openssl) in the C++ interface, you may need to use the functions mpz_import and mpz_export on the underlying C type mpz_t. Regards, /Niels -- Niels Möller. PGP-encrypted email is preferred. Keyid C0B98E26. Internet email is subject to wholesale government surveillance. _______________________________________________ nettle-bugs mailing list [email protected] http://lists.lysator.liu.se/mailman/listinfo/nettle-bugs
