unsigned char *md);
void SHA1_Init(SHA_CTX *c);
- void SHA1_Update(SHA_CTX *c, const unsigned char *data,
+ void SHA1_Update(SHA_CTX *c, const void *data,
unsigned long len);
void SHA1_Final(unsigned char *md, SHA_CTX *c);
SHA1_Final() places the message digest in B<md>, which must have space
for SHA_DIGEST_LENGTH == 20 bytes of output, and erases the B<SHA_CTX>.
+Applications should use the higher level functions
+L<EVP_DigestInit(3)|EVP_DigestInit(3)>
+etc. instead of calling the hash functions directly.
+
The predecessor of SHA-1, SHA, is also implemented, but it should be
used only when backward compatibility is required.
=head1 SEE ALSO
-L<ripemd(3)|ripemd(3)>
+L<ripemd(3)|ripemd(3)>, L<hmac(3)|hmac(3)>, L<EVP_DigestInit(3)|EVP_DigestInit(3)>
=head1 HISTORY