120 lines
5.1 KiB
C
120 lines
5.1 KiB
C
/* Copyright (c) 2001, Matej Pfajfar.
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* Copyright (c) 2001-2004, Roger Dingledine.
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2017, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file crypto_rsa.h
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*
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* \brief Headers for crypto_rsa.c
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**/
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#ifndef TOR_CRYPTO_RSA_H
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#define TOR_CRYPTO_RSA_H
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#include "orconfig.h"
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#include "crypto_digest.h"
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#include <stdio.h>
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#include "torint.h"
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#include "testsupport.h"
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#include "compat.h"
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#include "util.h"
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#include "torlog.h"
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/** Length of our public keys. */
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#define PK_BYTES (1024/8)
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/** Constant used to indicate OAEP padding for public-key encryption */
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#define PK_PKCS1_OAEP_PADDING 60002
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/** Number of bytes added for PKCS1-OAEP padding. */
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#define PKCS1_OAEP_PADDING_OVERHEAD 42
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/** A public key, or a public/private key-pair. */
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typedef struct crypto_pk_t crypto_pk_t;
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/* RSA environment setup */
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MOCK_DECL(crypto_pk_t *,crypto_pk_new,(void));
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void crypto_pk_free_(crypto_pk_t *env);
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#define crypto_pk_free(pk) FREE_AND_NULL(crypto_pk_t, crypto_pk_free_, (pk))
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int crypto_get_rsa_padding_overhead(int padding);
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int crypto_get_rsa_padding(int padding);
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/* public key crypto */
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MOCK_DECL(int, crypto_pk_generate_key_with_bits,(crypto_pk_t *env, int bits));
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#define crypto_pk_generate_key(env) \
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crypto_pk_generate_key_with_bits((env), (PK_BYTES*8))
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int crypto_pk_read_private_key_from_filename(crypto_pk_t *env,
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const char *keyfile);
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int crypto_pk_write_public_key_to_string(crypto_pk_t *env,
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char **dest, size_t *len);
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int crypto_pk_write_private_key_to_string(crypto_pk_t *env,
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char **dest, size_t *len);
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int crypto_pk_read_public_key_from_string(crypto_pk_t *env,
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const char *src, size_t len);
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int crypto_pk_read_private_key_from_string(crypto_pk_t *env,
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const char *s, ssize_t len);
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int crypto_pk_write_private_key_to_filename(crypto_pk_t *env,
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const char *fname);
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int crypto_pk_check_key(crypto_pk_t *env);
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int crypto_pk_cmp_keys(const crypto_pk_t *a, const crypto_pk_t *b);
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int crypto_pk_eq_keys(const crypto_pk_t *a, const crypto_pk_t *b);
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size_t crypto_pk_keysize(const crypto_pk_t *env);
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int crypto_pk_num_bits(crypto_pk_t *env);
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crypto_pk_t *crypto_pk_dup_key(crypto_pk_t *orig);
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crypto_pk_t *crypto_pk_copy_full(crypto_pk_t *orig);
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int crypto_pk_key_is_private(const crypto_pk_t *key);
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int crypto_pk_public_exponent_ok(crypto_pk_t *env);
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int crypto_pk_obsolete_public_hybrid_encrypt(crypto_pk_t *env, char *to,
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size_t tolen,
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const char *from, size_t fromlen,
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int padding, int force);
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int crypto_pk_obsolete_private_hybrid_decrypt(crypto_pk_t *env, char *to,
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size_t tolen,
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const char *from, size_t fromlen,
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int padding, int warnOnFailure);
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int crypto_pk_public_encrypt(crypto_pk_t *env, char *to, size_t tolen,
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const char *from, size_t fromlen, int padding);
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int crypto_pk_private_decrypt(crypto_pk_t *env, char *to, size_t tolen,
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const char *from, size_t fromlen,
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int padding, int warnOnFailure);
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MOCK_DECL(int, crypto_pk_public_checksig,(const crypto_pk_t *env,
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char *to, size_t tolen,
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const char *from, size_t fromlen));
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int crypto_pk_private_sign(const crypto_pk_t *env, char *to, size_t tolen,
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const char *from, size_t fromlen);
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int crypto_pk_asn1_encode(const crypto_pk_t *pk, char *dest, size_t dest_len);
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crypto_pk_t *crypto_pk_asn1_decode(const char *str, size_t len);
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int crypto_pk_get_fingerprint(crypto_pk_t *pk, char *fp_out,int add_space);
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int crypto_pk_get_hashed_fingerprint(crypto_pk_t *pk, char *fp_out);
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MOCK_DECL(int, crypto_pk_public_checksig_digest,(crypto_pk_t *env,
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const char *data, size_t datalen, const char *sig, size_t siglen));
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int crypto_pk_private_sign_digest(crypto_pk_t *env, char *to, size_t tolen,
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const char *from, size_t fromlen);
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int crypto_pk_get_digest(const crypto_pk_t *pk, char *digest_out);
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int crypto_pk_get_common_digests(crypto_pk_t *pk,
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common_digests_t *digests_out);
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int crypto_pk_base64_encode(const crypto_pk_t *pk, char **priv_out);
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crypto_pk_t *crypto_pk_base64_decode(const char *str, size_t len);
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/* Prototypes for private functions only used by tortls.c, crypto.c, and the
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* unit tests. */
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struct rsa_st;
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struct rsa_st *crypto_pk_get_rsa_(crypto_pk_t *env);
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crypto_pk_t *crypto_new_pk_from_rsa_(struct rsa_st *rsa);
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MOCK_DECL(struct evp_pkey_st *, crypto_pk_get_evp_pkey_,(crypto_pk_t *env,
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int private));
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struct evp_pkey_st;
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#ifdef TOR_UNIT_TESTS
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void crypto_pk_assign_(crypto_pk_t *dest, const crypto_pk_t *src);
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#endif
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#endif
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