dsa.h

包含哈希,对称以及非对称的经典算法 包含经典事例

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#pragma ident "@(#)dsa.h	1.5 96/01/29 Sun Microsystems"

#ifndef DSA_H
#define DSA_H

#include <stdio.h>

extern int genRandBn(struct BigNum *bn, unsigned bits);

extern int genKosherBn(struct BigNum *bn, unsigned bits, unsigned char high,
			unsigned char low, unsigned char *seed,
			unsigned len);

extern int dsaGen(struct BigNum *p, unsigned pbits, struct BigNum *q,
			unsigned qbits, struct BigNum *g, struct BigNum *x,
			struct BigNum *y, unsigned char *seed,
			unsigned len, FILE *f);

extern VerifyResult DSA_verify(const Bstream& data, const Bstream& sig,
				const PubKey& pubkey, AlgId sigalg);

extern Bstream DSA_sign(const Bigint& p, const Bigint& q, const Bigint& g,
			const Bigint& x, const Bstream& data);

extern int dsa_newcert(char *certreqFile, char *certFile, int lifetime,
			Bstream& passphrase);

extern int asn1_der_decode_dsa_privkey(Bstream, Bigint& p, Bigint& q,
					Bigint& g, Bigint& x);
extern Bstream asn1_der_encode_dsa_privkey(Bigint& p, Bigint& q,
						Bigint& g, Bigint& x);

extern int asn1_der_decode_dsa_params(Bstream, Bigint& p, Bigint& q,
					Bigint& g);

extern int asn1_der_decode_dsa_publickey(Bstream, Bigint& p, Bigint& q,
						Bigint& g, Bigint& y);
extern Bstream asn1_der_encode_dsa_publickey(Bigint& p, Bigint& q,
						Bigint& g, Bigint& y);

extern int asn1_der_decode_dsa_signature(Bstream, Bigint& r, Bigint& s);
extern Bstream asn1_der_encode_dsa_signature(Bigint& r, Bigint& s);

#endif