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// lol, I didn't know how real HMACs worked when I reversed this
// released under GPLv3, see http://gplv3.fsf.org/
#include <openssl/sha.h>
void SHA1_ghetto_init(SHA_CTX *c, u8* sha1_hmac) {
u8 section[0x40];
int i;
SHA1_Init(c);
memset(section, 0x36, 0x40);
for(i=0;i<0x40;i++) section[i] = sha1_hmac[i] ^ 0x36;
SHA1_Update(c, section, 0x40);
}
void SHA1_ghetto_final(u8* digest_out, SHA_CTX *c, u8* sha1_hmac) {
u8 section[0x40];
int i;
u8 digest[0x14];
SHA1_Final(digest, c);
SHA1_Init(c);
memset(section, 0x5C, 0x40);
for(i=0;i<0x40;i++) section[i] = sha1_hmac[i] ^ 0x5C;
SHA1_Update(c, section, 0x40);
SHA1_Update(c, digest, 0x14);
SHA1_Final(digest_out, c);
}
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