#ifndef OTP_HASH_H
#define OTP_HASH_H
struct digest_context;
enum {
OTP_HASH_MD4,
OTP_HASH_MD5,
OTP_HASH_SHA1,
};
int digest_find(const char *name);
void digest_init(struct digest_context *ctx, const unsigned int algo);
void digest_update(struct digest_context *ctx, const void *data,
const size_t size);
void digest_final(struct digest_context *ctx, unsigned char *result);
void digest_otp_final(struct digest_context *ctx, unsigned char *result);
const char *digest_name(unsigned int algo);
void otp_hash(unsigned int algo, const char *seed, const char *passphrase,
unsigned int step, unsigned char *result);
void otp_next_hash(unsigned int algo, const unsigned char *prev,
unsigned char *result);
#endif