diff options
Diffstat (limited to 'openssl/crypto/cms/cms_smime.c')
| -rw-r--r-- | openssl/crypto/cms/cms_smime.c | 1405 |
1 files changed, 675 insertions, 730 deletions
diff --git a/openssl/crypto/cms/cms_smime.c b/openssl/crypto/cms/cms_smime.c index 1af9f3a60..8851603f6 100644 --- a/openssl/crypto/cms/cms_smime.c +++ b/openssl/crypto/cms/cms_smime.c @@ -1,5 +1,6 @@ /* crypto/cms/cms_smime.c */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL +/* + * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL * project. */ /* ==================================================================== @@ -10,7 +11,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -60,792 +61,736 @@ #include "cms_lcl.h" static int cms_copy_content(BIO *out, BIO *in, unsigned int flags) - { - unsigned char buf[4096]; - int r = 0, i; - BIO *tmpout = NULL; - - if (out == NULL) - tmpout = BIO_new(BIO_s_null()); - else if (flags & CMS_TEXT) - { - tmpout = BIO_new(BIO_s_mem()); - BIO_set_mem_eof_return(tmpout, 0); - } - else - tmpout = out; - - if(!tmpout) - { - CMSerr(CMS_F_CMS_COPY_CONTENT,ERR_R_MALLOC_FAILURE); - goto err; - } - - /* Read all content through chain to process digest, decrypt etc */ - for (;;) - { - i=BIO_read(in,buf,sizeof(buf)); - if (i <= 0) - { - if (BIO_method_type(in) == BIO_TYPE_CIPHER) - { - if (!BIO_get_cipher_status(in)) - goto err; - } - if (i < 0) - goto err; - break; - } - - if (tmpout && (BIO_write(tmpout, buf, i) != i)) - goto err; - } - - if(flags & CMS_TEXT) - { - if(!SMIME_text(tmpout, out)) - { - CMSerr(CMS_F_CMS_COPY_CONTENT,CMS_R_SMIME_TEXT_ERROR); - goto err; - } - } - - r = 1; - - err: - if (tmpout && (tmpout != out)) - BIO_free(tmpout); - return r; - - } +{ + unsigned char buf[4096]; + int r = 0, i; + BIO *tmpout = NULL; + + if (out == NULL) + tmpout = BIO_new(BIO_s_null()); + else if (flags & CMS_TEXT) { + tmpout = BIO_new(BIO_s_mem()); + BIO_set_mem_eof_return(tmpout, 0); + } else + tmpout = out; + + if (!tmpout) { + CMSerr(CMS_F_CMS_COPY_CONTENT, ERR_R_MALLOC_FAILURE); + goto err; + } + + /* Read all content through chain to process digest, decrypt etc */ + for (;;) { + i = BIO_read(in, buf, sizeof(buf)); + if (i <= 0) { + if (BIO_method_type(in) == BIO_TYPE_CIPHER) { + if (!BIO_get_cipher_status(in)) + goto err; + } + if (i < 0) + goto err; + break; + } + + if (tmpout && (BIO_write(tmpout, buf, i) != i)) + goto err; + } + + if (flags & CMS_TEXT) { + if (!SMIME_text(tmpout, out)) { + CMSerr(CMS_F_CMS_COPY_CONTENT, CMS_R_SMIME_TEXT_ERROR); + goto err; + } + } + + r = 1; + + err: + if (tmpout && (tmpout != out)) + BIO_free(tmpout); + return r; + +} static int check_content(CMS_ContentInfo *cms) - { - ASN1_OCTET_STRING **pos = CMS_get0_content(cms); - if (!pos || !*pos) - { - CMSerr(CMS_F_CHECK_CONTENT, CMS_R_NO_CONTENT); - return 0; - } - return 1; - } +{ + ASN1_OCTET_STRING **pos = CMS_get0_content(cms); + if (!pos || !*pos) { + CMSerr(CMS_F_CHECK_CONTENT, CMS_R_NO_CONTENT); + return 0; + } + return 1; +} static void do_free_upto(BIO *f, BIO *upto) - { - if (upto) - { - BIO *tbio; - do - { - tbio = BIO_pop(f); - BIO_free(f); - f = tbio; - } - while (f != upto); - } - else - BIO_free_all(f); - } +{ + if (upto) { + BIO *tbio; + do { + tbio = BIO_pop(f); + BIO_free(f); + f = tbio; + } + while (f != upto); + } else + BIO_free_all(f); +} int CMS_data(CMS_ContentInfo *cms, BIO *out, unsigned int flags) - { - BIO *cont; - int r; - if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_data) - { - CMSerr(CMS_F_CMS_DATA, CMS_R_TYPE_NOT_DATA); - return 0; - } - cont = CMS_dataInit(cms, NULL); - if (!cont) - return 0; - r = cms_copy_content(out, cont, flags); - BIO_free_all(cont); - return r; - } +{ + BIO *cont; + int r; + if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_data) { + CMSerr(CMS_F_CMS_DATA, CMS_R_TYPE_NOT_DATA); + return 0; + } + cont = CMS_dataInit(cms, NULL); + if (!cont) + return 0; + r = cms_copy_content(out, cont, flags); + BIO_free_all(cont); + return r; +} CMS_ContentInfo *CMS_data_create(BIO *in, unsigned int flags) - { - CMS_ContentInfo *cms; - cms = cms_Data_create(); - if (!cms) - return NULL; +{ + CMS_ContentInfo *cms; + cms = cms_Data_create(); + if (!cms) + return NULL; - if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags)) - return cms; + if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags)) + return cms; - CMS_ContentInfo_free(cms); + CMS_ContentInfo_free(cms); - return NULL; - } + return NULL; +} int CMS_digest_verify(CMS_ContentInfo *cms, BIO *dcont, BIO *out, - unsigned int flags) - { - BIO *cont; - int r; - if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_digest) - { - CMSerr(CMS_F_CMS_DIGEST_VERIFY, CMS_R_TYPE_NOT_DIGESTED_DATA); - return 0; - } - - if (!dcont && !check_content(cms)) - return 0; - - cont = CMS_dataInit(cms, dcont); - if (!cont) - return 0; - r = cms_copy_content(out, cont, flags); - if (r) - r = cms_DigestedData_do_final(cms, cont, 1); - do_free_upto(cont, dcont); - return r; - } + unsigned int flags) +{ + BIO *cont; + int r; + if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_digest) { + CMSerr(CMS_F_CMS_DIGEST_VERIFY, CMS_R_TYPE_NOT_DIGESTED_DATA); + return 0; + } + + if (!dcont && !check_content(cms)) + return 0; + + cont = CMS_dataInit(cms, dcont); + if (!cont) + return 0; + r = cms_copy_content(out, cont, flags); + if (r) + r = cms_DigestedData_do_final(cms, cont, 1); + do_free_upto(cont, dcont); + return r; +} CMS_ContentInfo *CMS_digest_create(BIO *in, const EVP_MD *md, - unsigned int flags) - { - CMS_ContentInfo *cms; - if (!md) - md = EVP_sha1(); - cms = cms_DigestedData_create(md); - if (!cms) - return NULL; + unsigned int flags) +{ + CMS_ContentInfo *cms; + if (!md) + md = EVP_sha1(); + cms = cms_DigestedData_create(md); + if (!cms) + return NULL; - if(!(flags & CMS_DETACHED)) - CMS_set_detached(cms, 0); + if (!(flags & CMS_DETACHED)) + CMS_set_detached(cms, 0); - if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags)) - return cms; + if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags)) + return cms; - CMS_ContentInfo_free(cms); - return NULL; - } + CMS_ContentInfo_free(cms); + return NULL; +} int CMS_EncryptedData_decrypt(CMS_ContentInfo *cms, - const unsigned char *key, size_t keylen, - BIO *dcont, BIO *out, unsigned int flags) - { - BIO *cont; - int r; - if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_encrypted) - { - CMSerr(CMS_F_CMS_ENCRYPTEDDATA_DECRYPT, - CMS_R_TYPE_NOT_ENCRYPTED_DATA); - return 0; - } - - if (!dcont && !check_content(cms)) - return 0; - - if (CMS_EncryptedData_set1_key(cms, NULL, key, keylen) <= 0) - return 0; - cont = CMS_dataInit(cms, dcont); - if (!cont) - return 0; - r = cms_copy_content(out, cont, flags); - do_free_upto(cont, dcont); - return r; - } + const unsigned char *key, size_t keylen, + BIO *dcont, BIO *out, unsigned int flags) +{ + BIO *cont; + int r; + if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_encrypted) { + CMSerr(CMS_F_CMS_ENCRYPTEDDATA_DECRYPT, + CMS_R_TYPE_NOT_ENCRYPTED_DATA); + return 0; + } + + if (!dcont && !check_content(cms)) + return 0; + + if (CMS_EncryptedData_set1_key(cms, NULL, key, keylen) <= 0) + return 0; + cont = CMS_dataInit(cms, dcont); + if (!cont) + return 0; + r = cms_copy_content(out, cont, flags); + do_free_upto(cont, dcont); + return r; +} CMS_ContentInfo *CMS_EncryptedData_encrypt(BIO *in, const EVP_CIPHER *cipher, - const unsigned char *key, size_t keylen, - unsigned int flags) - { - CMS_ContentInfo *cms; - if (!cipher) - { - CMSerr(CMS_F_CMS_ENCRYPTEDDATA_ENCRYPT, CMS_R_NO_CIPHER); - return NULL; - } - cms = CMS_ContentInfo_new(); - if (!cms) - return NULL; - if (!CMS_EncryptedData_set1_key(cms, cipher, key, keylen)) - return NULL; - - if(!(flags & CMS_DETACHED)) - CMS_set_detached(cms, 0); - - if ((flags & (CMS_STREAM|CMS_PARTIAL)) - || CMS_final(cms, in, NULL, flags)) - return cms; - - CMS_ContentInfo_free(cms); - return NULL; - } + const unsigned char *key, + size_t keylen, unsigned int flags) +{ + CMS_ContentInfo *cms; + if (!cipher) { + CMSerr(CMS_F_CMS_ENCRYPTEDDATA_ENCRYPT, CMS_R_NO_CIPHER); + return NULL; + } + cms = CMS_ContentInfo_new(); + if (!cms) + return NULL; + if (!CMS_EncryptedData_set1_key(cms, cipher, key, keylen)) + return NULL; + + if (!(flags & CMS_DETACHED)) + CMS_set_detached(cms, 0); + + if ((flags & (CMS_STREAM | CMS_PARTIAL)) + || CMS_final(cms, in, NULL, flags)) + return cms; + + CMS_ContentInfo_free(cms); + return NULL; +} static int cms_signerinfo_verify_cert(CMS_SignerInfo *si, - X509_STORE *store, - STACK_OF(X509) *certs, - STACK_OF(X509_CRL) *crls, - unsigned int flags) - { - X509_STORE_CTX ctx; - X509 *signer; - int i, j, r = 0; - CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL); - if (!X509_STORE_CTX_init(&ctx, store, signer, certs)) - { - CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT, - CMS_R_STORE_INIT_ERROR); - goto err; - } - X509_STORE_CTX_set_default(&ctx, "smime_sign"); - if (crls) - X509_STORE_CTX_set0_crls(&ctx, crls); - - i = X509_verify_cert(&ctx); - if (i <= 0) - { - j = X509_STORE_CTX_get_error(&ctx); - CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT, - CMS_R_CERTIFICATE_VERIFY_ERROR); - ERR_add_error_data(2, "Verify error:", - X509_verify_cert_error_string(j)); - goto err; - } - r = 1; - err: - X509_STORE_CTX_cleanup(&ctx); - return r; - - } + X509_STORE *store, + STACK_OF(X509) *certs, + STACK_OF(X509_CRL) *crls, + unsigned int flags) +{ + X509_STORE_CTX ctx; + X509 *signer; + int i, j, r = 0; + CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL); + if (!X509_STORE_CTX_init(&ctx, store, signer, certs)) { + CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT, CMS_R_STORE_INIT_ERROR); + goto err; + } + X509_STORE_CTX_set_default(&ctx, "smime_sign"); + if (crls) + X509_STORE_CTX_set0_crls(&ctx, crls); + + i = X509_verify_cert(&ctx); + if (i <= 0) { + j = X509_STORE_CTX_get_error(&ctx); + CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT, + CMS_R_CERTIFICATE_VERIFY_ERROR); + ERR_add_error_data(2, "Verify error:", + X509_verify_cert_error_string(j)); + goto err; + } + r = 1; + err: + X509_STORE_CTX_cleanup(&ctx); + return r; + +} int CMS_verify(CMS_ContentInfo *cms, STACK_OF(X509) *certs, - X509_STORE *store, BIO *dcont, BIO *out, unsigned int flags) - { - CMS_SignerInfo *si; - STACK_OF(CMS_SignerInfo) *sinfos; - STACK_OF(X509) *cms_certs = NULL; - STACK_OF(X509_CRL) *crls = NULL; - X509 *signer; - int i, scount = 0, ret = 0; - BIO *cmsbio = NULL, *tmpin = NULL; - - if (!dcont && !check_content(cms)) - return 0; - - /* Attempt to find all signer certificates */ - - sinfos = CMS_get0_SignerInfos(cms); - - if (sk_CMS_SignerInfo_num(sinfos) <= 0) - { - CMSerr(CMS_F_CMS_VERIFY, CMS_R_NO_SIGNERS); - goto err; - } - - for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) - { - si = sk_CMS_SignerInfo_value(sinfos, i); - CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL); - if (signer) - scount++; - } - - if (scount != sk_CMS_SignerInfo_num(sinfos)) - scount += CMS_set1_signers_certs(cms, certs, flags); - - if (scount != sk_CMS_SignerInfo_num(sinfos)) - { - CMSerr(CMS_F_CMS_VERIFY, CMS_R_SIGNER_CERTIFICATE_NOT_FOUND); - goto err; - } - - /* Attempt to verify all signers certs */ - - if (!(flags & CMS_NO_SIGNER_CERT_VERIFY)) - { - cms_certs = CMS_get1_certs(cms); - if (!(flags & CMS_NOCRL)) - crls = CMS_get1_crls(cms); - for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) - { - si = sk_CMS_SignerInfo_value(sinfos, i); - if (!cms_signerinfo_verify_cert(si, store, - cms_certs, crls, flags)) - goto err; - } - } - - /* Attempt to verify all SignerInfo signed attribute signatures */ - - if (!(flags & CMS_NO_ATTR_VERIFY)) - { - for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) - { - si = sk_CMS_SignerInfo_value(sinfos, i); - if (CMS_signed_get_attr_count(si) < 0) - continue; - if (CMS_SignerInfo_verify(si) <= 0) - goto err; - } - } - - /* Performance optimization: if the content is a memory BIO then - * store its contents in a temporary read only memory BIO. This - * avoids potentially large numbers of slow copies of data which will - * occur when reading from a read write memory BIO when signatures - * are calculated. - */ - - if (dcont && (BIO_method_type(dcont) == BIO_TYPE_MEM)) - { - char *ptr; - long len; - len = BIO_get_mem_data(dcont, &ptr); - tmpin = BIO_new_mem_buf(ptr, len); - if (tmpin == NULL) - { - CMSerr(CMS_F_CMS_VERIFY,ERR_R_MALLOC_FAILURE); - return 0; - } - } - else - tmpin = dcont; - - - cmsbio=CMS_dataInit(cms, tmpin); - if (!cmsbio) - goto err; - - if (!cms_copy_content(out, cmsbio, flags)) - goto err; - - if (!(flags & CMS_NO_CONTENT_VERIFY)) - { - for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) - { - si = sk_CMS_SignerInfo_value(sinfos, i); - if (CMS_SignerInfo_verify_content(si, cmsbio) <= 0) - { - CMSerr(CMS_F_CMS_VERIFY, - CMS_R_CONTENT_VERIFY_ERROR); - goto err; - } - } - } - - ret = 1; - - err: - - if (dcont && (tmpin == dcont)) - do_free_upto(cmsbio, dcont); - else - BIO_free_all(cmsbio); - - if (cms_certs) - sk_X509_pop_free(cms_certs, X509_free); - if (crls) - sk_X509_CRL_pop_free(crls, X509_CRL_free); - - return ret; - } + X509_STORE *store, BIO *dcont, BIO *out, unsigned int flags) +{ + CMS_SignerInfo *si; + STACK_OF(CMS_SignerInfo) *sinfos; + STACK_OF(X509) *cms_certs = NULL; + STACK_OF(X509_CRL) *crls = NULL; + X509 *signer; + int i, scount = 0, ret = 0; + BIO *cmsbio = NULL, *tmpin = NULL; + + if (!dcont && !check_content(cms)) + return 0; + + /* Attempt to find all signer certificates */ + + sinfos = CMS_get0_SignerInfos(cms); + + if (sk_CMS_SignerInfo_num(sinfos) <= 0) { + CMSerr(CMS_F_CMS_VERIFY, CMS_R_NO_SIGNERS); + goto err; + } + + for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) { + si = sk_CMS_SignerInfo_value(sinfos, i); + CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL); + if (signer) + scount++; + } + + if (scount != sk_CMS_SignerInfo_num(sinfos)) + scount += CMS_set1_signers_certs(cms, certs, flags); + + if (scount != sk_CMS_SignerInfo_num(sinfos)) { + CMSerr(CMS_F_CMS_VERIFY, CMS_R_SIGNER_CERTIFICATE_NOT_FOUND); + goto err; + } + + /* Attempt to verify all signers certs */ + + if (!(flags & CMS_NO_SIGNER_CERT_VERIFY)) { + cms_certs = CMS_get1_certs(cms); + if (!(flags & CMS_NOCRL)) + crls = CMS_get1_crls(cms); + for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) { + si = sk_CMS_SignerInfo_value(sinfos, i); + if (!cms_signerinfo_verify_cert(si, store, + cms_certs, crls, flags)) + goto err; + } + } + + /* Attempt to verify all SignerInfo signed attribute signatures */ + + if (!(flags & CMS_NO_ATTR_VERIFY)) { + for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) { + si = sk_CMS_SignerInfo_value(sinfos, i); + if (CMS_signed_get_attr_count(si) < 0) + continue; + if (CMS_SignerInfo_verify(si) <= 0) + goto err; + } + } + + /* + * Performance optimization: if the content is a memory BIO then store + * its contents in a temporary read only memory BIO. This avoids + * potentially large numbers of slow copies of data which will occur when + * reading from a read write memory BIO when signatures are calculated. + */ + + if (dcont && (BIO_method_type(dcont) == BIO_TYPE_MEM)) { + char *ptr; + long len; + len = BIO_get_mem_data(dcont, &ptr); + tmpin = BIO_new_mem_buf(ptr, len); + if (tmpin == NULL) { + CMSerr(CMS_F_CMS_VERIFY, ERR_R_MALLOC_FAILURE); + return 0; + } + } else + tmpin = dcont; + + cmsbio = CMS_dataInit(cms, tmpin); + if (!cmsbio) + goto err; + + if (!cms_copy_content(out, cmsbio, flags)) + goto err; + + if (!(flags & CMS_NO_CONTENT_VERIFY)) { + for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) { + si = sk_CMS_SignerInfo_value(sinfos, i); + if (CMS_SignerInfo_verify_content(si, cmsbio) <= 0) { + CMSerr(CMS_F_CMS_VERIFY, CMS_R_CONTENT_VERIFY_ERROR); + goto err; + } + } + } + + ret = 1; + + err: + + if (dcont && (tmpin == dcont)) + do_free_upto(cmsbio, dcont); + else + BIO_free_all(cmsbio); + + if (cms_certs) + sk_X509_pop_free(cms_certs, X509_free); + if (crls) + sk_X509_CRL_pop_free(crls, X509_CRL_free); + + return ret; +} int CMS_verify_receipt(CMS_ContentInfo *rcms, CMS_ContentInfo *ocms, - STACK_OF(X509) *certs, - X509_STORE *store, unsigned int flags) - { - int r; - flags &= ~(CMS_DETACHED|CMS_TEXT); - r = CMS_verify(rcms, certs, store, NULL, NULL, flags); - if (r <= 0) - return r; - return cms_Receipt_verify(rcms, ocms); - } - -CMS_ContentInfo *CMS_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs, - BIO *data, unsigned int flags) - { - CMS_ContentInfo *cms; - int i; - - cms = CMS_ContentInfo_new(); - if (!cms || !CMS_SignedData_init(cms)) - goto merr; - - if (pkey && !CMS_add1_signer(cms, signcert, pkey, NULL, flags)) - { - CMSerr(CMS_F_CMS_SIGN, CMS_R_ADD_SIGNER_ERROR); - goto err; - } - - for (i = 0; i < sk_X509_num(certs); i++) - { - X509 *x = sk_X509_value(certs, i); - if (!CMS_add1_cert(cms, x)) - goto merr; - } - - if(!(flags & CMS_DETACHED)) - CMS_set_detached(cms, 0); - - if ((flags & (CMS_STREAM|CMS_PARTIAL)) - || CMS_final(cms, data, NULL, flags)) - return cms; - else - goto err; - - merr: - CMSerr(CMS_F_CMS_SIGN, ERR_R_MALLOC_FAILURE); - - err: - if (cms) - CMS_ContentInfo_free(cms); - return NULL; - } + STACK_OF(X509) *certs, + X509_STORE *store, unsigned int flags) +{ + int r; + flags &= ~(CMS_DETACHED | CMS_TEXT); + r = CMS_verify(rcms, certs, store, NULL, NULL, flags); + if (r <= 0) + return r; + return cms_Receipt_verify(rcms, ocms); +} + +CMS_ContentInfo *CMS_sign(X509 *signcert, EVP_PKEY *pkey, + STACK_OF(X509) *certs, BIO *data, + unsigned int flags) +{ + CMS_ContentInfo *cms; + int i; + + cms = CMS_ContentInfo_new(); + if (!cms || !CMS_SignedData_init(cms)) + goto merr; + + if (pkey && !CMS_add1_signer(cms, signcert, pkey, NULL, flags)) { + CMSerr(CMS_F_CMS_SIGN, CMS_R_ADD_SIGNER_ERROR); + goto err; + } + + for (i = 0; i < sk_X509_num(certs); i++) { + X509 *x = sk_X509_value(certs, i); + if (!CMS_add1_cert(cms, x)) + goto merr; + } + + if (!(flags & CMS_DETACHED)) + CMS_set_detached(cms, 0); + + if ((flags & (CMS_STREAM | CMS_PARTIAL)) + || CMS_final(cms, data, NULL, flags)) + return cms; + else + goto err; + + merr: + CMSerr(CMS_F_CMS_SIGN, ERR_R_MALLOC_FAILURE); + + err: + if (cms) + CMS_ContentInfo_free(cms); + return NULL; +} CMS_ContentInfo *CMS_sign_receipt(CMS_SignerInfo *si, - X509 *signcert, EVP_PKEY *pkey, - STACK_OF(X509) *certs, - unsigned int flags) - { - CMS_SignerInfo *rct_si; - CMS_ContentInfo *cms = NULL; - ASN1_OCTET_STRING **pos, *os; - BIO *rct_cont = NULL; - int r = 0; - - flags &= ~(CMS_STREAM|CMS_TEXT); - /* Not really detached but avoids content being allocated */ - flags |= CMS_PARTIAL|CMS_BINARY|CMS_DETACHED; - if (!pkey || !signcert) - { - CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_NO_KEY_OR_CERT); - return NULL; - } - - /* Initialize signed data */ - - cms = CMS_sign(NULL, NULL, certs, NULL, flags); - if (!cms) - goto err; - - /* Set inner content type to signed receipt */ - if (!CMS_set1_eContentType(cms, OBJ_nid2obj(NID_id_smime_ct_receipt))) - goto err; - - rct_si = CMS_add1_signer(cms, signcert, pkey, NULL, flags); - if (!rct_si) - { - CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_ADD_SIGNER_ERROR); - goto err; - } - - os = cms_encode_Receipt(si); - - if (!os) - goto err; - - /* Set content to digest */ - rct_cont = BIO_new_mem_buf(os->data, os->length); - if (!rct_cont) - goto err; - - /* Add msgSigDigest attribute */ - - if (!cms_msgSigDigest_add1(rct_si, si)) - goto err; - - /* Finalize structure */ - if (!CMS_final(cms, rct_cont, NULL, flags)) - goto err; - - /* Set embedded content */ - pos = CMS_get0_content(cms); - *pos = os; - - r = 1; - - err: - if (rct_cont) - BIO_free(rct_cont); - if (r) - return cms; - CMS_ContentInfo_free(cms); - return NULL; - - } + X509 *signcert, EVP_PKEY *pkey, + STACK_OF(X509) *certs, unsigned int flags) +{ + CMS_SignerInfo *rct_si; + CMS_ContentInfo *cms = NULL; + ASN1_OCTET_STRING **pos, *os; + BIO *rct_cont = NULL; + int r = 0; + + flags &= ~(CMS_STREAM | CMS_TEXT); + /* Not really detached but avoids content being allocated */ + flags |= CMS_PARTIAL | CMS_BINARY | CMS_DETACHED; + if (!pkey || !signcert) { + CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_NO_KEY_OR_CERT); + return NULL; + } + + /* Initialize signed data */ + + cms = CMS_sign(NULL, NULL, certs, NULL, flags); + if (!cms) + goto err; + + /* Set inner content type to signed receipt */ + if (!CMS_set1_eContentType(cms, OBJ_nid2obj(NID_id_smime_ct_receipt))) + goto err; + + rct_si = CMS_add1_signer(cms, signcert, pkey, NULL, flags); + if (!rct_si) { + CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_ADD_SIGNER_ERROR); + goto err; + } + + os = cms_encode_Receipt(si); + + if (!os) + goto err; + + /* Set content to digest */ + rct_cont = BIO_new_mem_buf(os->data, os->length); + if (!rct_cont) + goto err; + + /* Add msgSigDigest attribute */ + + if (!cms_msgSigDigest_add1(rct_si, si)) + goto err; + + /* Finalize structure */ + if (!CMS_final(cms, rct_cont, NULL, flags)) + goto err; + + /* Set embedded content */ + pos = CMS_get0_content(cms); + *pos = os; + + r = 1; + + err: + if (rct_cont) + BIO_free(rct_cont); + if (r) + return cms; + CMS_ContentInfo_free(cms); + return NULL; + +} CMS_ContentInfo *CMS_encrypt(STACK_OF(X509) *certs, BIO *data, - const EVP_CIPHER *cipher, unsigned int flags) - { - CMS_ContentInfo *cms; - int i; - X509 *recip; - cms = CMS_EnvelopedData_create(cipher); - if (!cms) - goto merr; - for (i = 0; i < sk_X509_num(certs); i++) - { - recip = sk_X509_value(certs, i); - if (!CMS_add1_recipient_cert(cms, recip, flags)) - { - CMSerr(CMS_F_CMS_ENCRYPT, CMS_R_RECIPIENT_ERROR); - goto err; - } - } - - if(!(flags & CMS_DETACHED)) - CMS_set_detached(cms, 0); - - if ((flags & (CMS_STREAM|CMS_PARTIAL)) - || CMS_final(cms, data, NULL, flags)) - return cms; - else - goto err; - - merr: - CMSerr(CMS_F_CMS_ENCRYPT, ERR_R_MALLOC_FAILURE); - err: - if (cms) - CMS_ContentInfo_free(cms); - return NULL; - } + const EVP_CIPHER *cipher, unsigned int flags) +{ + CMS_ContentInfo *cms; + int i; + X509 *recip; + cms = CMS_EnvelopedData_create(cipher); + if (!cms) + goto merr; + for (i = 0; i < sk_X509_num(certs); i++) { + recip = sk_X509_value(certs, i); + if (!CMS_add1_recipient_cert(cms, recip, flags)) { + CMSerr(CMS_F_CMS_ENCRYPT, CMS_R_RECIPIENT_ERROR); + goto err; + } + } + + if (!(flags & CMS_DETACHED)) + CMS_set_detached(cms, 0); + + if ((flags & (CMS_STREAM | CMS_PARTIAL)) + || CMS_final(cms, data, NULL, flags)) + return cms; + else + goto err; + + merr: + CMSerr(CMS_F_CMS_ENCRYPT, ERR_R_MALLOC_FAILURE); + err: + if (cms) + CMS_ContentInfo_free(cms); + return NULL; +} int CMS_decrypt_set1_pkey(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert) - { - STACK_OF(CMS_RecipientInfo) *ris; - CMS_RecipientInfo *ri; - int i, r; - int debug = 0, ri_match = 0; - ris = CMS_get0_RecipientInfos(cms); - if (ris) - debug = cms->d.envelopedData->encryptedContentInfo->debug; - for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) - { - ri = sk_CMS_RecipientInfo_value(ris, i); - if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_TRANS) - continue; - ri_match = 1; - /* If we have a cert try matching RecipientInfo - * otherwise try them all. - */ - if (!cert || (CMS_RecipientInfo_ktri_cert_cmp(ri, cert) == 0)) - { - CMS_RecipientInfo_set0_pkey(ri, pk); - r = CMS_RecipientInfo_decrypt(cms, ri); - CMS_RecipientInfo_set0_pkey(ri, NULL); - if (cert) - { - /* If not debugging clear any error and - * return success to avoid leaking of - * information useful to MMA - */ - if (!debug) - { - ERR_clear_error(); - return 1; - } - if (r > 0) - return 1; - CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, - CMS_R_DECRYPT_ERROR); - return 0; - } - /* If no cert and not debugging don't leave loop - * after first successful decrypt. Always attempt - * to decrypt all recipients to avoid leaking timing - * of a successful decrypt. - */ - else if (r > 0 && debug) - return 1; - } - } - /* If no cert and not debugging always return success */ - if (ri_match && !cert && !debug) - { - ERR_clear_error(); - return 1; - } - - CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_NO_MATCHING_RECIPIENT); - return 0; - - } - -int CMS_decrypt_set1_key(CMS_ContentInfo *cms, - unsigned char *key, size_t keylen, - unsigned char *id, size_t idlen) - { - STACK_OF(CMS_RecipientInfo) *ris; - CMS_RecipientInfo *ri; - int i, r; - ris = CMS_get0_RecipientInfos(cms); - for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) - { - ri = sk_CMS_RecipientInfo_value(ris, i); - if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_KEK) - continue; - - /* If we have an id try matching RecipientInfo - * otherwise try them all. - */ - if (!id || (CMS_RecipientInfo_kekri_id_cmp(ri, id, idlen) == 0)) - { - CMS_RecipientInfo_set0_key(ri, key, keylen); - r = CMS_RecipientInfo_decrypt(cms, ri); - CMS_RecipientInfo_set0_key(ri, NULL, 0); - if (r > 0) - return 1; - if (id) - { - CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, - CMS_R_DECRYPT_ERROR); - return 0; - } - ERR_clear_error(); - } - } - - CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, CMS_R_NO_MATCHING_RECIPIENT); - return 0; - - } - -int CMS_decrypt_set1_password(CMS_ContentInfo *cms, - unsigned char *pass, ossl_ssize_t passlen) - { - STACK_OF(CMS_RecipientInfo) *ris; - CMS_RecipientInfo *ri; - int i, r; - ris = CMS_get0_RecipientInfos(cms); - for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) - { - ri = sk_CMS_RecipientInfo_value(ris, i); - if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_PASS) - continue; - CMS_RecipientInfo_set0_password(ri, pass, passlen); - r = CMS_RecipientInfo_decrypt(cms, ri); - CMS_RecipientInfo_set0_password(ri, NULL, 0); - if (r > 0) - return 1; - } - - CMSerr(CMS_F_CMS_DECRYPT_SET1_PASSWORD, CMS_R_NO_MATCHING_RECIPIENT); - return 0; - - } - +{ + STACK_OF(CMS_RecipientInfo) *ris; + CMS_RecipientInfo *ri; + int i, r; + int debug = 0, ri_match = 0; + ris = CMS_get0_RecipientInfos(cms); + if (ris) + debug = cms->d.envelopedData->encryptedContentInfo->debug; + for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) { + ri = sk_CMS_RecipientInfo_value(ris, i); + if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_TRANS) + continue; + ri_match = 1; + /* + * If we have a cert try matching RecipientInfo otherwise try them + * all. + */ + if (!cert || (CMS_RecipientInfo_ktri_cert_cmp(ri, cert) == 0)) { + CMS_RecipientInfo_set0_pkey(ri, pk); + r = CMS_RecipientInfo_decrypt(cms, ri); + CMS_RecipientInfo_set0_pkey(ri, NULL); + if (cert) { + /* + * If not debugging clear any error and return success to + * avoid leaking of information useful to MMA + */ + if (!debug) { + ERR_clear_error(); + return 1; + } + if (r > 0) + return 1; + CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_DECRYPT_ERROR); + return 0; + } + /* + * If no cert and not debugging don't leave loop after first + * successful decrypt. Always attempt to decrypt all recipients + * to avoid leaking timing of a successful decrypt. + */ + else if (r > 0 && debug) + return 1; + } + } + /* If no cert and not debugging always return success */ + if (ri_match && !cert && !debug) { + ERR_clear_error(); + return 1; + } + + CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_NO_MATCHING_RECIPIENT); + return 0; + +} + +int CMS_decrypt_set1_key(CMS_ContentInfo *cms, + unsigned char *key, size_t keylen, + unsigned char *id, size_t idlen) +{ + STACK_OF(CMS_RecipientInfo) *ris; + CMS_RecipientInfo *ri; + int i, r; + ris = CMS_get0_RecipientInfos(cms); + for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) { + ri = sk_CMS_RecipientInfo_value(ris, i); + if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_KEK) + continue; + + /* + * If we have an id try matching RecipientInfo otherwise try them + * all. + */ + if (!id || (CMS_RecipientInfo_kekri_id_cmp(ri, id, idlen) == 0)) { + CMS_RecipientInfo_set0_key(ri, key, keylen); + r = CMS_RecipientInfo_decrypt(cms, ri); + CMS_RecipientInfo_set0_key(ri, NULL, 0); + if (r > 0) + return 1; + if (id) { + CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, CMS_R_DECRYPT_ERROR); + return 0; + } + ERR_clear_error(); + } + } + + CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, CMS_R_NO_MATCHING_RECIPIENT); + return 0; + +} + +int CMS_decrypt_set1_password(CMS_ContentInfo *cms, + unsigned char *pass, ossl_ssize_t passlen) +{ + STACK_OF(CMS_RecipientInfo) *ris; + CMS_RecipientInfo *ri; + int i, r; + ris = CMS_get0_RecipientInfos(cms); + for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) { + ri = sk_CMS_RecipientInfo_value(ris, i); + if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_PASS) + continue; + CMS_RecipientInfo_set0_password(ri, pass, passlen); + r = CMS_RecipientInfo_decrypt(cms, ri); + CMS_RecipientInfo_set0_password(ri, NULL, 0); + if (r > 0) + return 1; + } + + CMSerr(CMS_F_CMS_DECRYPT_SET1_PASSWORD, CMS_R_NO_MATCHING_RECIPIENT); + return 0; + +} + int CMS_decrypt(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert, - BIO *dcont, BIO *out, - unsigned int flags) - { - int r; - BIO *cont; - if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_enveloped) - { - CMSerr(CMS_F_CMS_DECRYPT, CMS_R_TYPE_NOT_ENVELOPED_DATA); - return 0; - } - if (!dcont && !check_content(cms)) - return 0; - if (flags & CMS_DEBUG_DECRYPT) - cms->d.envelopedData->encryptedContentInfo->debug = 1; - else - cms->d.envelopedData->encryptedContentInfo->debug = 0; - if (!pk && !cert && !dcont && !out) - return 1; - if (pk && !CMS_decrypt_set1_pkey(cms, pk, cert)) - return 0; - cont = CMS_dataInit(cms, dcont); - if (!cont) - return 0; - r = cms_copy_content(out, cont, flags); - do_free_upto(cont, dcont); - return r; - } + BIO *dcont, BIO *out, unsigned int flags) +{ + int r; + BIO *cont; + if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_enveloped) { + CMSerr(CMS_F_CMS_DECRYPT, CMS_R_TYPE_NOT_ENVELOPED_DATA); + return 0; + } + if (!dcont && !check_content(cms)) + return 0; + if (flags & CMS_DEBUG_DECRYPT) + cms->d.envelopedData->encryptedContentInfo->debug = 1; + else + cms->d.envelopedData->encryptedContentInfo->debug = 0; + if (!pk && !cert && !dcont && !out) + return 1; + if (pk && !CMS_decrypt_set1_pkey(cms, pk, cert)) + return 0; + cont = CMS_dataInit(cms, dcont); + if (!cont) + return 0; + r = cms_copy_content(out, cont, flags); + do_free_upto(cont, dcont); + return r; +} int CMS_final(CMS_ContentInfo *cms, BIO *data, BIO *dcont, unsigned int flags) - { - BIO *cmsbio; - int ret = 0; - if (!(cmsbio = CMS_dataInit(cms, dcont))) - { - CMSerr(CMS_F_CMS_FINAL,ERR_R_MALLOC_FAILURE); - return 0; - } - - SMIME_crlf_copy(data, cmsbio, flags); +{ + BIO *cmsbio; + int ret = 0; + if (!(cmsbio = CMS_dataInit(cms, dcont))) { + CMSerr(CMS_F_CMS_FINAL, ERR_R_MALLOC_FAILURE); + return 0; + } - (void)BIO_flush(cmsbio); + SMIME_crlf_copy(data, cmsbio, flags); + (void)BIO_flush(cmsbio); - if (!CMS_dataFinal(cms, cmsbio)) - { - CMSerr(CMS_F_CMS_FINAL,CMS_R_CMS_DATAFINAL_ERROR); - goto err; - } + if (!CMS_dataFinal(cms, cmsbio)) { + CMSerr(CMS_F_CMS_FINAL, CMS_R_CMS_DATAFINAL_ERROR); + goto err; + } - ret = 1; + ret = 1; - err: - do_free_upto(cmsbio, dcont); + err: + do_free_upto(cmsbio, dcont); - return ret; + return ret; - } +} #ifdef ZLIB int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out, - unsigned int flags) - { - BIO *cont; - int r; - if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_id_smime_ct_compressedData) - { - CMSerr(CMS_F_CMS_UNCOMPRESS, - CMS_R_TYPE_NOT_COMPRESSED_DATA); - return 0; - } - - if (!dcont && !check_content(cms)) - return 0; - - cont = CMS_dataInit(cms, dcont); - if (!cont) - return 0; - r = cms_copy_content(out, cont, flags); - do_free_upto(cont, dcont); - return r; - } + unsigned int flags) +{ + BIO *cont; + int r; + if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_id_smime_ct_compressedData) { + CMSerr(CMS_F_CMS_UNCOMPRESS, CMS_R_TYPE_NOT_COMPRESSED_DATA); + return 0; + } + + if (!dcont && !check_content(cms)) + return 0; + + cont = CMS_dataInit(cms, dcont); + if (!cont) + return 0; + r = cms_copy_content(out, cont, flags); + do_free_upto(cont, dcont); + return r; +} CMS_ContentInfo *CMS_compress(BIO *in, int comp_nid, unsigned int flags) - { - CMS_ContentInfo *cms; - if (comp_nid <= 0) - comp_nid = NID_zlib_compression; - cms = cms_CompressedData_create(comp_nid); - if (!cms) - return NULL; +{ + CMS_ContentInfo *cms; + if (comp_nid <= 0) + comp_nid = NID_zlib_compression; + cms = cms_CompressedData_create(comp_nid); + if (!cms) + return NULL; - if(!(flags & CMS_DETACHED)) - CMS_set_detached(cms, 0); + if (!(flags & CMS_DETACHED)) + CMS_set_detached(cms, 0); - if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags)) - return cms; + if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags)) + return cms; - CMS_ContentInfo_free(cms); - return NULL; - } + CMS_ContentInfo_free(cms); + return NULL; +} #else int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out, - unsigned int flags) - { - CMSerr(CMS_F_CMS_UNCOMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM); - return 0; - } + unsigned int flags) +{ + CMSerr(CMS_F_CMS_UNCOMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM); + return 0; +} CMS_ContentInfo *CMS_compress(BIO *in, int comp_nid, unsigned int flags) - { - CMSerr(CMS_F_CMS_COMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM); - return NULL; - } +{ + CMSerr(CMS_F_CMS_COMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM); + return NULL; +} #endif |