diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/rsa/rsa_lib.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/rsa/rsa_lib.c | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/rsa/rsa_lib.c b/openssl-1.1.0h/crypto/rsa/rsa_lib.c new file mode 100644 index 0000000..e1377a0 --- /dev/null +++ b/openssl-1.1.0h/crypto/rsa/rsa_lib.c @@ -0,0 +1,288 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include <openssl/crypto.h> +#include "internal/cryptlib.h" +#include <openssl/lhash.h> +#include "internal/bn_int.h" +#include <openssl/engine.h> +#include "rsa_locl.h" + +RSA *RSA_new(void) +{ + return RSA_new_method(NULL); +} + +const RSA_METHOD *RSA_get_method(const RSA *rsa) +{ + return rsa->meth; +} + +int RSA_set_method(RSA *rsa, const RSA_METHOD *meth) +{ + /* + * NB: The caller is specifically setting a method, so it's not up to us + * to deal with which ENGINE it comes from. + */ + const RSA_METHOD *mtmp; + mtmp = rsa->meth; + if (mtmp->finish) + mtmp->finish(rsa); +#ifndef OPENSSL_NO_ENGINE + ENGINE_finish(rsa->engine); + rsa->engine = NULL; +#endif + rsa->meth = meth; + if (meth->init) + meth->init(rsa); + return 1; +} + +RSA *RSA_new_method(ENGINE *engine) +{ + RSA *ret = OPENSSL_zalloc(sizeof(*ret)); + + if (ret == NULL) { + RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE); + return NULL; + } + + ret->references = 1; + ret->lock = CRYPTO_THREAD_lock_new(); + if (ret->lock == NULL) { + RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE); + OPENSSL_free(ret); + return NULL; + } + + ret->meth = RSA_get_default_method(); +#ifndef OPENSSL_NO_ENGINE + ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW; + if (engine) { + if (!ENGINE_init(engine)) { + RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB); + goto err; + } + ret->engine = engine; + } else + ret->engine = ENGINE_get_default_RSA(); + if (ret->engine) { + ret->meth = ENGINE_get_RSA(ret->engine); + if (ret->meth == NULL) { + RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB); + goto err; + } + } +#endif + + ret->flags = ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW; + if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data)) { + goto err; + } + + if ((ret->meth->init != NULL) && !ret->meth->init(ret)) { + RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_INIT_FAIL); + goto err; + } + + return ret; + +err: + RSA_free(ret); + return NULL; +} + +void RSA_free(RSA *r) +{ + int i; + + if (r == NULL) + return; + + CRYPTO_atomic_add(&r->references, -1, &i, r->lock); + REF_PRINT_COUNT("RSA", r); + if (i > 0) + return; + REF_ASSERT_ISNT(i < 0); + + if (r->meth->finish) + r->meth->finish(r); +#ifndef OPENSSL_NO_ENGINE + ENGINE_finish(r->engine); +#endif + + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data); + + CRYPTO_THREAD_lock_free(r->lock); + + BN_clear_free(r->n); + BN_clear_free(r->e); + BN_clear_free(r->d); + BN_clear_free(r->p); + BN_clear_free(r->q); + BN_clear_free(r->dmp1); + BN_clear_free(r->dmq1); + BN_clear_free(r->iqmp); + BN_BLINDING_free(r->blinding); + BN_BLINDING_free(r->mt_blinding); + OPENSSL_free(r->bignum_data); + OPENSSL_free(r); +} + +int RSA_up_ref(RSA *r) +{ + int i; + + if (CRYPTO_atomic_add(&r->references, 1, &i, r->lock) <= 0) + return 0; + + REF_PRINT_COUNT("RSA", r); + REF_ASSERT_ISNT(i < 2); + return ((i > 1) ? 1 : 0); +} + +int RSA_set_ex_data(RSA *r, int idx, void *arg) +{ + return (CRYPTO_set_ex_data(&r->ex_data, idx, arg)); +} + +void *RSA_get_ex_data(const RSA *r, int idx) +{ + return (CRYPTO_get_ex_data(&r->ex_data, idx)); +} + +int RSA_security_bits(const RSA *rsa) +{ + return BN_security_bits(BN_num_bits(rsa->n), -1); +} + +int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d) +{ + /* If the fields n and e in r are NULL, the corresponding input + * parameters MUST be non-NULL for n and e. d may be + * left NULL (in case only the public key is used). + */ + if ((r->n == NULL && n == NULL) + || (r->e == NULL && e == NULL)) + return 0; + + if (n != NULL) { + BN_free(r->n); + r->n = n; + } + if (e != NULL) { + BN_free(r->e); + r->e = e; + } + if (d != NULL) { + BN_free(r->d); + r->d = d; + } + + return 1; +} + +int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q) +{ + /* If the fields p and q in r are NULL, the corresponding input + * parameters MUST be non-NULL. + */ + if ((r->p == NULL && p == NULL) + || (r->q == NULL && q == NULL)) + return 0; + + if (p != NULL) { + BN_free(r->p); + r->p = p; + } + if (q != NULL) { + BN_free(r->q); + r->q = q; + } + + return 1; +} + +int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp) +{ + /* If the fields dmp1, dmq1 and iqmp in r are NULL, the corresponding input + * parameters MUST be non-NULL. + */ + if ((r->dmp1 == NULL && dmp1 == NULL) + || (r->dmq1 == NULL && dmq1 == NULL) + || (r->iqmp == NULL && iqmp == NULL)) + return 0; + + if (dmp1 != NULL) { + BN_free(r->dmp1); + r->dmp1 = dmp1; + } + if (dmq1 != NULL) { + BN_free(r->dmq1); + r->dmq1 = dmq1; + } + if (iqmp != NULL) { + BN_free(r->iqmp); + r->iqmp = iqmp; + } + + return 1; +} + +void RSA_get0_key(const RSA *r, + const BIGNUM **n, const BIGNUM **e, const BIGNUM **d) +{ + if (n != NULL) + *n = r->n; + if (e != NULL) + *e = r->e; + if (d != NULL) + *d = r->d; +} + +void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q) +{ + if (p != NULL) + *p = r->p; + if (q != NULL) + *q = r->q; +} + +void RSA_get0_crt_params(const RSA *r, + const BIGNUM **dmp1, const BIGNUM **dmq1, + const BIGNUM **iqmp) +{ + if (dmp1 != NULL) + *dmp1 = r->dmp1; + if (dmq1 != NULL) + *dmq1 = r->dmq1; + if (iqmp != NULL) + *iqmp = r->iqmp; +} + +void RSA_clear_flags(RSA *r, int flags) +{ + r->flags &= ~flags; +} + +int RSA_test_flags(const RSA *r, int flags) +{ + return r->flags & flags; +} + +void RSA_set_flags(RSA *r, int flags) +{ + r->flags |= flags; +} + +ENGINE *RSA_get0_engine(const RSA *r) +{ + return r->engine; +} |