diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/pkcs7/pk7_lib.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/pkcs7/pk7_lib.c | 589 |
1 files changed, 589 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/pkcs7/pk7_lib.c b/openssl-1.1.0h/crypto/pkcs7/pk7_lib.c new file mode 100644 index 0000000..69c68cf --- /dev/null +++ b/openssl-1.1.0h/crypto/pkcs7/pk7_lib.c @@ -0,0 +1,589 @@ +/* + * 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 "internal/cryptlib.h" +#include <openssl/objects.h> +#include <openssl/x509.h> +#include "internal/asn1_int.h" +#include "internal/evp_int.h" + +long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg) +{ + int nid; + long ret; + + nid = OBJ_obj2nid(p7->type); + + switch (cmd) { + /* NOTE(emilia): does not support detached digested data. */ + case PKCS7_OP_SET_DETACHED_SIGNATURE: + if (nid == NID_pkcs7_signed) { + ret = p7->detached = (int)larg; + if (ret && PKCS7_type_is_data(p7->d.sign->contents)) { + ASN1_OCTET_STRING *os; + os = p7->d.sign->contents->d.data; + ASN1_OCTET_STRING_free(os); + p7->d.sign->contents->d.data = NULL; + } + } else { + PKCS7err(PKCS7_F_PKCS7_CTRL, + PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); + ret = 0; + } + break; + case PKCS7_OP_GET_DETACHED_SIGNATURE: + if (nid == NID_pkcs7_signed) { + if (!p7->d.sign || !p7->d.sign->contents->d.ptr) + ret = 1; + else + ret = 0; + + p7->detached = ret; + } else { + PKCS7err(PKCS7_F_PKCS7_CTRL, + PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); + ret = 0; + } + + break; + default: + PKCS7err(PKCS7_F_PKCS7_CTRL, PKCS7_R_UNKNOWN_OPERATION); + ret = 0; + } + return (ret); +} + +int PKCS7_content_new(PKCS7 *p7, int type) +{ + PKCS7 *ret = NULL; + + if ((ret = PKCS7_new()) == NULL) + goto err; + if (!PKCS7_set_type(ret, type)) + goto err; + if (!PKCS7_set_content(p7, ret)) + goto err; + + return (1); + err: + PKCS7_free(ret); + return (0); +} + +int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data) +{ + int i; + + i = OBJ_obj2nid(p7->type); + switch (i) { + case NID_pkcs7_signed: + PKCS7_free(p7->d.sign->contents); + p7->d.sign->contents = p7_data; + break; + case NID_pkcs7_digest: + PKCS7_free(p7->d.digest->contents); + p7->d.digest->contents = p7_data; + break; + case NID_pkcs7_data: + case NID_pkcs7_enveloped: + case NID_pkcs7_signedAndEnveloped: + case NID_pkcs7_encrypted: + default: + PKCS7err(PKCS7_F_PKCS7_SET_CONTENT, PKCS7_R_UNSUPPORTED_CONTENT_TYPE); + goto err; + } + return (1); + err: + return (0); +} + +int PKCS7_set_type(PKCS7 *p7, int type) +{ + ASN1_OBJECT *obj; + + /* + * PKCS7_content_free(p7); + */ + obj = OBJ_nid2obj(type); /* will not fail */ + + switch (type) { + case NID_pkcs7_signed: + p7->type = obj; + if ((p7->d.sign = PKCS7_SIGNED_new()) == NULL) + goto err; + if (!ASN1_INTEGER_set(p7->d.sign->version, 1)) { + PKCS7_SIGNED_free(p7->d.sign); + p7->d.sign = NULL; + goto err; + } + break; + case NID_pkcs7_data: + p7->type = obj; + if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL) + goto err; + break; + case NID_pkcs7_signedAndEnveloped: + p7->type = obj; + if ((p7->d.signed_and_enveloped = PKCS7_SIGN_ENVELOPE_new()) + == NULL) + goto err; + ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1); + if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1)) + goto err; + p7->d.signed_and_enveloped->enc_data->content_type + = OBJ_nid2obj(NID_pkcs7_data); + break; + case NID_pkcs7_enveloped: + p7->type = obj; + if ((p7->d.enveloped = PKCS7_ENVELOPE_new()) + == NULL) + goto err; + if (!ASN1_INTEGER_set(p7->d.enveloped->version, 0)) + goto err; + p7->d.enveloped->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data); + break; + case NID_pkcs7_encrypted: + p7->type = obj; + if ((p7->d.encrypted = PKCS7_ENCRYPT_new()) + == NULL) + goto err; + if (!ASN1_INTEGER_set(p7->d.encrypted->version, 0)) + goto err; + p7->d.encrypted->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data); + break; + + case NID_pkcs7_digest: + p7->type = obj; + if ((p7->d.digest = PKCS7_DIGEST_new()) + == NULL) + goto err; + if (!ASN1_INTEGER_set(p7->d.digest->version, 0)) + goto err; + break; + default: + PKCS7err(PKCS7_F_PKCS7_SET_TYPE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE); + goto err; + } + return (1); + err: + return (0); +} + +int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other) +{ + p7->type = OBJ_nid2obj(type); + p7->d.other = other; + return 1; +} + +int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi) +{ + int i, j, nid; + X509_ALGOR *alg; + STACK_OF(PKCS7_SIGNER_INFO) *signer_sk; + STACK_OF(X509_ALGOR) *md_sk; + + i = OBJ_obj2nid(p7->type); + switch (i) { + case NID_pkcs7_signed: + signer_sk = p7->d.sign->signer_info; + md_sk = p7->d.sign->md_algs; + break; + case NID_pkcs7_signedAndEnveloped: + signer_sk = p7->d.signed_and_enveloped->signer_info; + md_sk = p7->d.signed_and_enveloped->md_algs; + break; + default: + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, PKCS7_R_WRONG_CONTENT_TYPE); + return (0); + } + + nid = OBJ_obj2nid(psi->digest_alg->algorithm); + + /* If the digest is not currently listed, add it */ + j = 0; + for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) { + alg = sk_X509_ALGOR_value(md_sk, i); + if (OBJ_obj2nid(alg->algorithm) == nid) { + j = 1; + break; + } + } + if (!j) { /* we need to add another algorithm */ + if ((alg = X509_ALGOR_new()) == NULL + || (alg->parameter = ASN1_TYPE_new()) == NULL) { + X509_ALGOR_free(alg); + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, ERR_R_MALLOC_FAILURE); + return (0); + } + alg->algorithm = OBJ_nid2obj(nid); + alg->parameter->type = V_ASN1_NULL; + if (!sk_X509_ALGOR_push(md_sk, alg)) { + X509_ALGOR_free(alg); + return 0; + } + } + + if (!sk_PKCS7_SIGNER_INFO_push(signer_sk, psi)) + return 0; + return (1); +} + +int PKCS7_add_certificate(PKCS7 *p7, X509 *x509) +{ + int i; + STACK_OF(X509) **sk; + + i = OBJ_obj2nid(p7->type); + switch (i) { + case NID_pkcs7_signed: + sk = &(p7->d.sign->cert); + break; + case NID_pkcs7_signedAndEnveloped: + sk = &(p7->d.signed_and_enveloped->cert); + break; + default: + PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, PKCS7_R_WRONG_CONTENT_TYPE); + return (0); + } + + if (*sk == NULL) + *sk = sk_X509_new_null(); + if (*sk == NULL) { + PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE); + return 0; + } + X509_up_ref(x509); + if (!sk_X509_push(*sk, x509)) { + X509_free(x509); + return 0; + } + return (1); +} + +int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl) +{ + int i; + STACK_OF(X509_CRL) **sk; + + i = OBJ_obj2nid(p7->type); + switch (i) { + case NID_pkcs7_signed: + sk = &(p7->d.sign->crl); + break; + case NID_pkcs7_signedAndEnveloped: + sk = &(p7->d.signed_and_enveloped->crl); + break; + default: + PKCS7err(PKCS7_F_PKCS7_ADD_CRL, PKCS7_R_WRONG_CONTENT_TYPE); + return (0); + } + + if (*sk == NULL) + *sk = sk_X509_CRL_new_null(); + if (*sk == NULL) { + PKCS7err(PKCS7_F_PKCS7_ADD_CRL, ERR_R_MALLOC_FAILURE); + return 0; + } + + X509_CRL_up_ref(crl); + if (!sk_X509_CRL_push(*sk, crl)) { + X509_CRL_free(crl); + return 0; + } + return (1); +} + +int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey, + const EVP_MD *dgst) +{ + int ret; + + /* We now need to add another PKCS7_SIGNER_INFO entry */ + if (!ASN1_INTEGER_set(p7i->version, 1)) + goto err; + if (!X509_NAME_set(&p7i->issuer_and_serial->issuer, + X509_get_issuer_name(x509))) + goto err; + + /* + * because ASN1_INTEGER_set is used to set a 'long' we will do things the + * ugly way. + */ + ASN1_INTEGER_free(p7i->issuer_and_serial->serial); + if (!(p7i->issuer_and_serial->serial = + ASN1_INTEGER_dup(X509_get_serialNumber(x509)))) + goto err; + + /* lets keep the pkey around for a while */ + EVP_PKEY_up_ref(pkey); + p7i->pkey = pkey; + + /* Set the algorithms */ + + X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)), + V_ASN1_NULL, NULL); + + if (pkey->ameth && pkey->ameth->pkey_ctrl) { + ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_SIGN, 0, p7i); + if (ret > 0) + return 1; + if (ret != -2) { + PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET, + PKCS7_R_SIGNING_CTRL_FAILURE); + return 0; + } + } + PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET, + PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); + err: + return 0; +} + +PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey, + const EVP_MD *dgst) +{ + PKCS7_SIGNER_INFO *si = NULL; + + if (dgst == NULL) { + int def_nid; + if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0) + goto err; + dgst = EVP_get_digestbynid(def_nid); + if (dgst == NULL) { + PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE, PKCS7_R_NO_DEFAULT_DIGEST); + goto err; + } + } + + if ((si = PKCS7_SIGNER_INFO_new()) == NULL) + goto err; + if (!PKCS7_SIGNER_INFO_set(si, x509, pkey, dgst)) + goto err; + if (!PKCS7_add_signer(p7, si)) + goto err; + return (si); + err: + PKCS7_SIGNER_INFO_free(si); + return (NULL); +} + +int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md) +{ + if (PKCS7_type_is_digest(p7)) { + if ((p7->d.digest->md->parameter = ASN1_TYPE_new()) == NULL) { + PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, ERR_R_MALLOC_FAILURE); + return 0; + } + p7->d.digest->md->parameter->type = V_ASN1_NULL; + p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md)); + return 1; + } + + PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, PKCS7_R_WRONG_CONTENT_TYPE); + return 1; +} + +STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7) +{ + if (p7 == NULL || p7->d.ptr == NULL) + return NULL; + if (PKCS7_type_is_signed(p7)) { + return (p7->d.sign->signer_info); + } else if (PKCS7_type_is_signedAndEnveloped(p7)) { + return (p7->d.signed_and_enveloped->signer_info); + } else + return (NULL); +} + +void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk, + X509_ALGOR **pdig, X509_ALGOR **psig) +{ + if (pk) + *pk = si->pkey; + if (pdig) + *pdig = si->digest_alg; + if (psig) + *psig = si->digest_enc_alg; +} + +void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc) +{ + if (penc) + *penc = ri->key_enc_algor; +} + +PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509) +{ + PKCS7_RECIP_INFO *ri; + + if ((ri = PKCS7_RECIP_INFO_new()) == NULL) + goto err; + if (!PKCS7_RECIP_INFO_set(ri, x509)) + goto err; + if (!PKCS7_add_recipient_info(p7, ri)) + goto err; + return ri; + err: + PKCS7_RECIP_INFO_free(ri); + return NULL; +} + +int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri) +{ + int i; + STACK_OF(PKCS7_RECIP_INFO) *sk; + + i = OBJ_obj2nid(p7->type); + switch (i) { + case NID_pkcs7_signedAndEnveloped: + sk = p7->d.signed_and_enveloped->recipientinfo; + break; + case NID_pkcs7_enveloped: + sk = p7->d.enveloped->recipientinfo; + break; + default: + PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO, + PKCS7_R_WRONG_CONTENT_TYPE); + return (0); + } + + if (!sk_PKCS7_RECIP_INFO_push(sk, ri)) + return 0; + return (1); +} + +int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509) +{ + int ret; + EVP_PKEY *pkey = NULL; + if (!ASN1_INTEGER_set(p7i->version, 0)) + return 0; + if (!X509_NAME_set(&p7i->issuer_and_serial->issuer, + X509_get_issuer_name(x509))) + return 0; + + ASN1_INTEGER_free(p7i->issuer_and_serial->serial); + if (!(p7i->issuer_and_serial->serial = + ASN1_INTEGER_dup(X509_get_serialNumber(x509)))) + return 0; + + pkey = X509_get0_pubkey(x509); + + if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl) { + PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, + PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); + goto err; + } + + ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_ENCRYPT, 0, p7i); + if (ret == -2) { + PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, + PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); + goto err; + } + if (ret <= 0) { + PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, + PKCS7_R_ENCRYPTION_CTRL_FAILURE); + goto err; + } + + X509_up_ref(x509); + p7i->cert = x509; + + return 1; + + err: + return 0; +} + +X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si) +{ + if (PKCS7_type_is_signed(p7)) + return (X509_find_by_issuer_and_serial(p7->d.sign->cert, + si->issuer_and_serial->issuer, + si-> + issuer_and_serial->serial)); + else + return (NULL); +} + +int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher) +{ + int i; + PKCS7_ENC_CONTENT *ec; + + i = OBJ_obj2nid(p7->type); + switch (i) { + case NID_pkcs7_signedAndEnveloped: + ec = p7->d.signed_and_enveloped->enc_data; + break; + case NID_pkcs7_enveloped: + ec = p7->d.enveloped->enc_data; + break; + default: + PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, PKCS7_R_WRONG_CONTENT_TYPE); + return (0); + } + + /* Check cipher OID exists and has data in it */ + i = EVP_CIPHER_type(cipher); + if (i == NID_undef) { + PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, + PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER); + return (0); + } + + ec->cipher = cipher; + return 1; +} + +int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7) +{ + ASN1_OCTET_STRING *os = NULL; + + switch (OBJ_obj2nid(p7->type)) { + case NID_pkcs7_data: + os = p7->d.data; + break; + + case NID_pkcs7_signedAndEnveloped: + os = p7->d.signed_and_enveloped->enc_data->enc_data; + if (os == NULL) { + os = ASN1_OCTET_STRING_new(); + p7->d.signed_and_enveloped->enc_data->enc_data = os; + } + break; + + case NID_pkcs7_enveloped: + os = p7->d.enveloped->enc_data->enc_data; + if (os == NULL) { + os = ASN1_OCTET_STRING_new(); + p7->d.enveloped->enc_data->enc_data = os; + } + break; + + case NID_pkcs7_signed: + os = p7->d.sign->contents->d.data; + break; + + default: + os = NULL; + break; + } + + if (os == NULL) + return 0; + + os->flags |= ASN1_STRING_FLAG_NDEF; + *boundary = &os->data; + + return 1; +} |