diff options
Diffstat (limited to 'providers/implementations/encode_decode/encoder_rsa_priv.c')
| -rw-r--r-- | providers/implementations/encode_decode/encoder_rsa_priv.c | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/providers/implementations/encode_decode/encoder_rsa_priv.c b/providers/implementations/encode_decode/encoder_rsa_priv.c new file mode 100644 index 0000000000..3ba648f360 --- /dev/null +++ b/providers/implementations/encode_decode/encoder_rsa_priv.c @@ -0,0 +1,294 @@ +/* + * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (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 + */ + +/* + * RSA low level APIs are deprecated for public use, but still ok for + * internal use. + */ +#include "internal/deprecated.h" + +#include <openssl/core_dispatch.h> +#include <openssl/core_names.h> +#include <openssl/err.h> +#include <openssl/pem.h> +#include <openssl/rsa.h> +#include <openssl/types.h> +#include <openssl/params.h> +#include <openssl/safestack.h> +#include "crypto/rsa.h" +#include "prov/bio.h" +#include "prov/implementations.h" +#include "prov/providercommonerr.h" +#include "prov/provider_ctx.h" +#include "encoder_local.h" + +static OSSL_FUNC_encoder_newctx_fn rsa_priv_newctx; +static OSSL_FUNC_encoder_freectx_fn rsa_priv_freectx; +static OSSL_FUNC_encoder_set_ctx_params_fn rsa_priv_set_ctx_params; +static OSSL_FUNC_encoder_settable_ctx_params_fn rsa_priv_settable_ctx_params; +static OSSL_FUNC_encoder_encode_data_fn rsa_priv_der_data; +static OSSL_FUNC_encoder_encode_object_fn rsa_priv_der; +static OSSL_FUNC_encoder_encode_data_fn rsa_pem_priv_data; +static OSSL_FUNC_encoder_encode_object_fn rsa_pem_priv; + +static OSSL_FUNC_encoder_newctx_fn rsa_print_newctx; +static OSSL_FUNC_encoder_freectx_fn rsa_print_freectx; +static OSSL_FUNC_encoder_encode_data_fn rsa_priv_print_data; +static OSSL_FUNC_encoder_encode_object_fn rsa_priv_print; + +/* + * Context used for private key encoding. + */ +struct rsa_priv_ctx_st { + void *provctx; + + struct pkcs8_encrypt_ctx_st sc; +}; + +/* Private key : context */ +static void *rsa_priv_newctx(void *provctx) +{ + struct rsa_priv_ctx_st *ctx = OPENSSL_zalloc(sizeof(*ctx)); + + if (ctx != NULL) { + ctx->provctx = provctx; + /* -1 is the "whatever" indicator, i.e. the PKCS8 library default PBE */ + ctx->sc.pbe_nid = -1; + } + return ctx; +} + +static void rsa_priv_freectx(void *vctx) +{ + struct rsa_priv_ctx_st *ctx = vctx; + + EVP_CIPHER_free(ctx->sc.cipher); + OPENSSL_free(ctx->sc.cipher_pass); + OPENSSL_free(ctx); +} + +static const OSSL_PARAM *rsa_priv_settable_ctx_params(ossl_unused void *provctx) +{ + static const OSSL_PARAM settables[] = { + OSSL_PARAM_utf8_string(OSSL_ENCODER_PARAM_CIPHER, NULL, 0), + OSSL_PARAM_octet_string(OSSL_ENCODER_PARAM_PASS, NULL, 0), + OSSL_PARAM_END, + }; + + return settables; +} + +static int rsa_priv_set_ctx_params(void *vctx, const OSSL_PARAM params[]) +{ + struct rsa_priv_ctx_st *ctx = vctx; + const OSSL_PARAM *p; + + if ((p = OSSL_PARAM_locate_const(params, OSSL_ENCODER_PARAM_CIPHER)) + != NULL) { + const OSSL_PARAM *propsp = + OSSL_PARAM_locate_const(params, OSSL_ENCODER_PARAM_PROPERTIES); + const char *props = NULL; + + if (p->data_type != OSSL_PARAM_UTF8_STRING) + return 0; + if (propsp != NULL && propsp->data_type != OSSL_PARAM_UTF8_STRING) + return 0; + props = (propsp != NULL ? propsp->data : NULL); + + EVP_CIPHER_free(ctx->sc.cipher); + ctx->sc.cipher_intent = p->data != NULL; + if (p->data != NULL + && ((ctx->sc.cipher = EVP_CIPHER_fetch(NULL, p->data, props)) + == NULL)) + return 0; + } + if ((p = OSSL_PARAM_locate_const(params, OSSL_ENCODER_PARAM_PASS)) + != NULL) { + OPENSSL_free(ctx->sc.cipher_pass); + ctx->sc.cipher_pass = NULL; + if (!OSSL_PARAM_get_octet_string(p, &ctx->sc.cipher_pass, 0, + &ctx->sc.cipher_pass_length)) + return 0; + } + return 1; +} + +/* Private key : DER */ +static int rsa_priv_der_data(void *vctx, const OSSL_PARAM params[], + OSSL_CORE_BIO *out, + OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) +{ + struct rsa_priv_ctx_st *ctx = vctx; + OSSL_FUNC_keymgmt_new_fn *rsa_new = ossl_prov_get_keymgmt_rsa_new(); + OSSL_FUNC_keymgmt_free_fn *rsa_free = ossl_prov_get_keymgmt_rsa_free(); + OSSL_FUNC_keymgmt_import_fn *rsa_import = ossl_prov_get_keymgmt_rsa_import(); + int ok = 0; + + if (rsa_import != NULL) { + RSA *rsa; + + if ((rsa = rsa_new(ctx->provctx)) != NULL + && rsa_import(rsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params) + && rsa_priv_der(ctx, rsa, out, cb, cbarg)) + ok = 1; + rsa_free(rsa); + } + return ok; +} + +static int rsa_priv_der(void *vctx, void *rsa, OSSL_CORE_BIO *cout, + OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) +{ + struct rsa_priv_ctx_st *ctx = vctx; + int ret; + BIO *out = bio_new_from_core_bio(ctx->provctx, cout); + + if (out == NULL) + return 0; + + ctx->sc.cb = cb; + ctx->sc.cbarg = cbarg; + + ret = ossl_prov_write_priv_der_from_obj(out, rsa, + ossl_prov_rsa_type_to_evp(rsa), + ossl_prov_prepare_rsa_params, + (i2d_of_void *)i2d_RSAPrivateKey, + &ctx->sc); + BIO_free(out); + + return ret; +} + +/* Private key : PEM */ +static int rsa_pem_priv_data(void *vctx, const OSSL_PARAM params[], + OSSL_CORE_BIO *out, + OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) +{ + struct rsa_priv_ctx_st *ctx = vctx; + OSSL_FUNC_keymgmt_new_fn *rsa_new = ossl_prov_get_keymgmt_rsa_new(); + OSSL_FUNC_keymgmt_free_fn *rsa_free = ossl_prov_get_keymgmt_rsa_free(); + OSSL_FUNC_keymgmt_import_fn *rsa_import = ossl_prov_get_keymgmt_rsa_import(); + int ok = 0; + + if (rsa_import != NULL) { + RSA *rsa; + + if ((rsa = rsa_new(ctx->provctx)) != NULL + && rsa_import(rsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params) + && rsa_pem_priv(ctx, rsa, out, cb, cbarg)) + ok = 1; + rsa_free(rsa); + } + return ok; +} + +static int rsa_pem_priv(void *vctx, void *rsa, OSSL_CORE_BIO *cout, + OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) +{ + struct rsa_priv_ctx_st *ctx = vctx; + int ret; + BIO *out = bio_new_from_core_bio(ctx->provctx, cout); + + if (out == NULL) + return 0; + + ctx->sc.cb = cb; + ctx->sc.cbarg = cbarg; + + ret = ossl_prov_write_priv_pem_from_obj(out, rsa, + ossl_prov_rsa_type_to_evp(rsa), + ossl_prov_prepare_rsa_params, + (i2d_of_void *)i2d_RSAPrivateKey, + &ctx->sc); + BIO_free(out); + + return ret; +} + +/* + * There's no specific print context, so we use the provider context + */ +static void *rsa_print_newctx(void *provctx) +{ + return provctx; +} + +static void rsa_print_freectx(void *ctx) +{ +} + +static int rsa_priv_print_data(void *vctx, const OSSL_PARAM params[], + OSSL_CORE_BIO *out, + OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) +{ + struct rsa_priv_ctx_st *ctx = vctx; + OSSL_FUNC_keymgmt_new_fn *rsa_new = ossl_prov_get_keymgmt_rsa_new(); + OSSL_FUNC_keymgmt_free_fn *rsa_free = ossl_prov_get_keymgmt_rsa_free(); + OSSL_FUNC_keymgmt_import_fn *rsa_import = ossl_prov_get_keymgmt_rsa_import(); + int ok = 0; + + if (rsa_import != NULL) { + RSA *rsa; + + if ((rsa = rsa_new(ctx->provctx)) != NULL + && rsa_import(rsa, OSSL_KEYMGMT_SELECT_KEYPAIR, params) + && rsa_priv_print(ctx, rsa, out, cb, cbarg)) + ok = 1; + rsa_free(rsa); + } + return ok; +} + +static int rsa_priv_print(void *ctx, void *rsa, OSSL_CORE_BIO *cout, + OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg) +{ + BIO *out = bio_new_from_core_bio(ctx, cout); + int ret; + + if (out == NULL) + return 0; + + ret = ossl_prov_print_rsa(out, rsa, 1); + BIO_free(out); + + return ret; +} + +const OSSL_DISPATCH rsa_priv_der_encoder_functions[] = { + { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))rsa_priv_newctx }, + { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))rsa_priv_freectx }, + { OSSL_FUNC_ENCODER_SET_CTX_PARAMS, + (void (*)(void))rsa_priv_set_ctx_params }, + { OSSL_FUNC_ENCODER_SETTABLE_CTX_PARAMS, + (void (*)(void))rsa_priv_settable_ctx_params }, + { OSSL_FUNC_ENCODER_ENCODE_DATA, (void (*)(void))rsa_priv_der_data }, + { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))rsa_priv_der }, + { 0, NULL } +}; + +const OSSL_DISPATCH rsa_priv_pem_encoder_functions[] = { + { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))rsa_priv_newctx }, + { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))rsa_priv_freectx }, + { OSSL_FUNC_ENCODER_SET_CTX_PARAMS, + (void (*)(void))rsa_priv_set_ctx_params }, + { OSSL_FUNC_ENCODER_SETTABLE_CTX_PARAMS, + (void (*)(void))rsa_priv_settable_ctx_params }, + { OSSL_FUNC_ENCODER_ENCODE_DATA, (void (*)(void))rsa_pem_priv_data }, + { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))rsa_pem_priv }, + { 0, NULL } +}; + +const OSSL_DISPATCH rsa_priv_text_encoder_functions[] = { + { OSSL_FUNC_ENCODER_NEWCTX, (void (*)(void))rsa_print_newctx }, + { OSSL_FUNC_ENCODER_FREECTX, (void (*)(void))rsa_print_freectx }, + { OSSL_FUNC_ENCODER_ENCODE_OBJECT, (void (*)(void))rsa_priv_print }, + { OSSL_FUNC_ENCODER_ENCODE_DATA, + (void (*)(void))rsa_priv_print_data }, + { 0, NULL } +}; |