/* * Copyright 2008-2019 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 */ /* CMS utility function */ #include #include #include "apps.h" #include "progs.h" #ifndef OPENSSL_NO_CMS # include # include # include # include # include # include static int save_certs(char *signerfile, STACK_OF(X509) *signers); static int cms_cb(int ok, X509_STORE_CTX *ctx); static void receipt_request_print(CMS_ContentInfo *cms); static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING) *rr_from); static int cms_set_pkey_param(EVP_PKEY_CTX *pctx, STACK_OF(OPENSSL_STRING) *param); # define SMIME_OP 0x10 # define SMIME_IP 0x20 # define SMIME_SIGNERS 0x40 # define SMIME_ENCRYPT (1 | SMIME_OP) # define SMIME_DECRYPT (2 | SMIME_IP) # define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS) # define SMIME_VERIFY (4 | SMIME_IP) # define SMIME_CMSOUT (5 | SMIME_IP | SMIME_OP) # define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS) # define SMIME_DATAOUT (7 | SMIME_IP) # define SMIME_DATA_CREATE (8 | SMIME_OP) # define SMIME_DIGEST_VERIFY (9 | SMIME_IP) # define SMIME_DIGEST_CREATE (10 | SMIME_OP) # define SMIME_UNCOMPRESS (11 | SMIME_IP) # define SMIME_COMPRESS (12 | SMIME_OP) # define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP) # define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP) # define SMIME_SIGN_RECEIPT (15 | SMIME_IP | SMIME_OP) # define SMIME_VERIFY_RECEIPT (16 | SMIME_IP) static int verify_err = 0; typedef struct cms_key_param_st cms_key_param; struct cms_key_param_st { int idx; STACK_OF(OPENSSL_STRING) *param; cms_key_param *next; }; typedef enum OPTION_choice { OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENCRYPT, OPT_DECRYPT, OPT_SIGN, OPT_SIGN_RECEIPT, OPT_RESIGN, OPT_VERIFY, OPT_VERIFY_RETCODE, OPT_VERIFY_RECEIPT, OPT_CMSOUT, OPT_DATA_OUT, OPT_DATA_CREATE, OPT_DIGEST_VERIFY, OPT_DIGEST_CREATE, OPT_COMPRESS, OPT_UNCOMPRESS, OPT_ED_DECRYPT, OPT_ED_ENCRYPT, OPT_DEBUG_DECRYPT, OPT_TEXT, OPT_ASCIICRLF, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCERTS, OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, OPT_BINARY, OPT_KEYID, OPT_NOSIGS, OPT_NO_CONTENT_VERIFY, OPT_NO_ATTR_VERIFY, OPT_INDEF, OPT_NOINDEF, OPT_CRLFEOL, OPT_NOOUT, OPT_RR_PRINT, OPT_RR_ALL, OPT_RR_FIRST, OPT_RCTFORM, OPT_CERTFILE, OPT_CAFILE, OPT_CAPATH, OPT_NOCAPATH, OPT_NOCAFILE,OPT_CONTENT, OPT_PRINT, OPT_SECRETKEY, OPT_SECRETKEYID, OPT_PWRI_PASSWORD, OPT_ECONTENT_TYPE, OPT_PASSIN, OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP, OPT_CERTSOUT, OPT_MD, OPT_INKEY, OPT_KEYFORM, OPT_KEYOPT, OPT_RR_FROM, OPT_RR_TO, OPT_AES128_WRAP, OPT_AES192_WRAP, OPT_AES256_WRAP, OPT_3DES_WRAP, OPT_ENGINE, OPT_R_ENUM, OPT_V_ENUM, OPT_CIPHER } OPTION_CHOICE; const OPTIONS cms_options[] = { {OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"}, {OPT_HELP_STR, 1, '-', " cert.pem... recipient certs for encryption\n"}, {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, {"help", OPT_HELP, '-', "Display this summary"}, {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"}, {"outform", OPT_OUTFORM, 'c', "Output format SMIME (default), PEM or DER"}, {"in", OPT_IN, '<', "Input file"}, {"out", OPT_OUT, '>', "Output file"}, {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"}, {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"}, {"sign", OPT_SIGN, '-', "Sign message"}, {"sign_receipt", OPT_SIGN_RECEIPT, '-', "Generate a signed receipt for the message"}, {"resign", OPT_RESIGN, '-', "Resign a signed message"}, {"verify", OPT_VERIFY, '-', "Verify signed message"}, {"verify_retcode", OPT_VERIFY_RETCODE, '-'}, {"verify_receipt", OPT_VERIFY_RECEIPT, '<'}, {"cmsout", OPT_CMSOUT, '-', "Output CMS structure"}, {"data_out", OPT_DATA_OUT, '-'}, {"data_create", OPT_DATA_CREATE, '-'}, {"digest_verify", OPT_DIGEST_VERIFY, '-'}, {"digest_create", OPT_DIGEST_CREATE, '-'}, {"compress", OPT_COMPRESS, '-'}, {"uncompress", OPT_UNCOMPRESS, '-'}, {"EncryptedData_decrypt", OPT_ED_DECRYPT, '-'}, {"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-'}, {"debug_decrypt", OPT_DEBUG_DECRYPT, '-'}, {"text", OPT_TEXT, '-', "Include or delete text MIME headers"}, {"asciicrlf", OPT_ASCIICRLF, '-'}, {"nointern", OPT_NOINTERN, '-', "Don't search certificates in message for signer"}, {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"}, {"nocerts", OPT_NOCERTS, '-', "Don't include signers certificate when signing"}, {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"}, {"nodetach", OPT_NODETACH, '-', "Use opaque signing"}, {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"}, {"binary", OPT_BINARY, '-', "Don't translate message to text"}, {"keyid", OPT_KEYID, '-', "Use subject key identifier"}, {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"}, {"no_content_verify", OPT_NO_CONTENT_VERIFY, '-'}, {"no_attr_verify", OPT_NO_ATTR_VERIFY, '-'}, {"stream", OPT_INDEF, '-', "Enable CMS streaming"}, {"indef", OPT_INDEF, '-', "Same as -stream"}, {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"}, {"crlfeol", OPT_CRLFEOL, '-', "Use CRLF as EOL termination instead of CR only" }, {"noout", OPT_NOOUT, '-', "For the -cmsout operation do not output the parsed CMS structure"}, {"receipt_request_print", OPT_RR_PRINT, '-', "Print CMS Receipt Request" }, {"receipt_request_all", OPT_RR_ALL, '-'}, {"receipt_request_first", OPT_RR_FIRST, '-'}, {"rctform", OPT_RCTFORM, 'F', "Receipt file format"}, {"certfile", OPT_CERTFILE, '<', "Other certificates file"}, {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"}, {"CApath", OPT_CAPATH, '/', "trusted certificates directory"}, {"no-CAfile", OPT_NOCAFILE, '-', "Do not load the default certificates file"}, {"no-CApath", OPT_NOCAPATH, '-', "Do not load certificates from the default certificates directory"}, {"content", OPT_CONTENT, '<', "Supply or override content for detached signature"}, {"print", OPT_PRINT, '-', "For the -cmsout operation print out all fields of the CMS structure"}, {"secretkey", OPT_SECRETKEY, 's'}, {"secretkeyid", OPT_SECRETKEYID, 's'}, {"pwri_password", OPT_PWRI_PASSWORD, 's'}, {"econtent_type", OPT_ECONTENT_TYPE, 's'}, {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, {"to", OPT_TO, 's', "To address"}, {"from", OPT_FROM, 's', "From address"}, {"subject", OPT_SUBJECT, 's', "Subject"}, {"signer", OPT_SIGNER, 's', "Signer certificate file"}, {"recip", OPT_RECIP, '<', "Recipient cert file for decryption"}, {"certsout", OPT_CERTSOUT, '>', "Certificate output file"}, {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"}, {"inkey", OPT_INKEY, 's', "Input private key (if not signer or recipient)"}, {"keyform", OPT_KEYFORM, 'f', "Input private key format (PEM or ENGINE)"}, {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"}, {"receipt_request_from", OPT_RR_FROM, 's'}, {"receipt_request_to", OPT_RR_TO, 's'}, {"", OPT_CIPHER, '-', "Any supported cipher"}, OPT_R_OPTIONS, OPT_V_OPTIONS, {"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"}, {"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"}, {"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"}, # ifndef OPENSSL_NO_DES {"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"}, # endif # ifndef OPENSSL_NO_ENGINE {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"}, # endif {NULL} }; int cms_main(int argc, char **argv) { ASN1_OBJECT *econtent_type = NULL; BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL; CMS_ContentInfo *cms = NULL, *rcms = NULL; CMS_ReceiptRequest *rr = NULL; ENGINE *e = NULL; EVP_PKEY *key = NULL; const EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL; const EVP_MD *sign_md = NULL; STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL; STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL; STACK_OF(X509) *encerts = NULL, *other = NULL; X509 *cert = NULL, *recip = NULL, *signer = NULL; X509_STORE *store = NULL; X509_VERIFY_PARAM *vpm = NULL; char *certfile = NULL, *keyfile = NULL, *contfile = NULL; const char *CAfile = NULL, *CApath = NULL; char *certsoutfile = NULL; int noCAfile = 0, noCApath = 0; char *infile = NULL, *outfile = NULL, *rctfile = NULL; char *passinarg = NULL, *passin = NULL, *signerfile = NULL, *recipfile = NULL; char *to = NULL, *from = NULL, *subject = NULL, *prog; cms_key_param *key_first = NULL, *key_param = NULL; int flags = CMS_DETACHED, noout = 0, print = 0, keyidx = -1, vpmtouched = 0; int informat = FORMAT_SMIME, outformat = FORMAT_SMIME; int operation = 0, ret = 1, rr_print = 0, rr_allorfirst = -1; int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_PEM; size_t secret_keylen = 0, secret_keyidlen = 0; unsigned char *pwri_pass = NULL, *pwri_tmp = NULL; unsigned char *secret_key = NULL, *secret_keyid = NULL; long ltmp; const char *mime_eol = "\n"; OPTION_CHOICE o; if ((vpm = X509_VERIFY_PARAM_new()) == NULL) return 1; prog = opt_init(argc, argv, cms_options); while ((o = opt_next()) != OPT_EOF) { switch (o) { case OPT_EOF: case OPT_ERR: opthelp: BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); goto end; case OPT_HELP: opt_help(cms_options); ret = 0; goto end; case OPT_INFORM: if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat)) goto opthelp; break; case OPT_OUTFORM: if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat)) goto opthelp; break; case OPT_OUT: outfile = opt_arg(); break; case OPT_ENCRYPT: operation = SMIME_ENCRYPT; break; case OPT_DECRYPT: operation = SMIME_DECRYPT; break; case OPT_SIGN: operation = SMIME_SIGN; break; case OPT_SIGN_RECEIPT: operation = SMIME_SIGN_RECEIPT; break; case OPT_RESIGN: operation = SMIME_RESIGN; break; case OPT_VERIFY: operation = SMIME_VERIFY; break; case OPT_VERIFY_RETCODE: verify_retcode = 1; break; case OPT_VERIFY_RECEIPT: operation = SMIME_VERIFY_RECEIPT; rctfile = opt_arg(); break; case OPT_CMSOUT: operation = SMIME_CMSOUT; break; case OPT_DATA_OUT: operation = SMIME_DATAOUT; break; case OPT_DATA_CREATE: operation = SMIME_DATA_CREATE; break; case OPT_DIGEST_VERIFY: operation = SMIME_DIGEST_VERIFY; break; case OPT_DIGEST_CREATE: operation = SMIME_DIGEST_CREATE; break; case OPT_COMPRESS: operation = SMIME_COMPRESS; break; case OPT_UNCOMPRESS: operation = SMIME_UNCOMPRESS; break; case OPT_ED_DECRYPT: operation = SMIME_ENCRYPTED_DECRYPT; break; case OPT_ED_ENCRYPT: operation = SMIME_ENCRYPTED_ENCRYPT; break; case OPT_DEBUG_DECRYPT: flags |= CMS_DEBUG_DECRYPT; break; case OPT_TEXT: flags |= CMS_TEXT; break; case OPT_ASCIICRLF: flags |= CMS_ASCIICRLF; break; case OPT_NOINTERN: flags |= CMS_NOINTERN; break; case OPT_NOVERIFY: flags |= CMS_NO_SIGNER_CERT_VERIFY; break; case OPT_NOCERTS: flags |= CMS_NOCERTS; break; case OPT_NOATTR: flags |= CMS_NOATTR; break; case OPT_NODETACH: flags &= ~CMS_DETACHED; break; case OPT_NOSMIMECAP: flags |= CMS_NOSMIMECAP; break; case OPT_BINARY: flags |= CMS_BINARY; break; case OPT_KEYID: flags |= CMS_USE_KEYID; break; case OPT_NOSIGS: flags |= CMS_NOSIGS; break; case OPT_NO_CONTENT_VERIFY: flags |= CMS_NO_CONTENT_VERIFY; break; case OPT_NO_ATTR_VERIFY: flags |= CMS_NO_ATTR_VERIFY; break; case OPT_INDEF: flags |= CMS_STREAM; break; case OPT_NOINDEF: flags &= ~CMS_STREAM; break; case OPT_CRLFEOL: mime_eol = "\r\n"; flags |= CMS_CRLFEOL; break; case OPT_NOOUT: noout = 1; break; case OPT_RR_PRINT: rr_print = 1; break; case OPT_RR_ALL: rr_allorfirst = 0; break; case OPT_RR_FIRST: rr_allorfirst = 1; break; case OPT_RCTFORM: if (rctformat == FORMAT_SMIME) rcms = SMIME_read_CMS(rctin, NULL); else if (rctformat == FORMAT_PEM) rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL); else if (rctformat == FORMAT_ASN1) if (!opt_format(opt_arg(), OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat)) goto opthelp; break; case OPT_CERTFILE: certfile = opt_arg(); break; case OPT_CAFILE: CAfile = opt_arg(); break; case OPT_CAPATH: CApath = opt_arg(); break; case OPT_NOCAFILE: noCAfile = 1; break; case OPT_NOCAPATH: noCApath = 1; break; case OPT_IN: infile = opt_arg(); break; case OPT_CONTENT: contfile = opt_arg(); break; case OPT_RR_FROM: if (rr_from == NULL && (rr_from = sk_OPENSSL_STRING_new_null()) == NULL) goto end; sk_OPENSSL_STRING_push(rr_from, opt_arg()); break; case OPT_RR_TO: if (rr_to == NULL && (rr_to = sk_OPENSSL_STRING_new_null()) == NULL) goto end; sk_OPENSSL_STRING_push(rr_to, opt_arg()); break; case OPT_PRINT: noout = print = 1; break; case OPT_SECRETKEY: if (secret_key != NULL) { BIO_printf(bio_err, "Invalid key (supplied twice) %s\n", opt_arg()); goto opthelp; } secret_key = OPENSSL_hexstr2buf(opt_arg(), <mp); if (secret_key == NULL) { BIO_printf(bio_err, "Invalid key %s\n", opt_arg()); goto end; } secret_keylen = (size_t)ltmp; break; case OPT_SECRETKEYID: if (secret_keyid != NULL) { BIO_printf(bio_err, "Invalid id (supplied twice) %s\n", opt_arg()); goto opthelp; } secret_keyid = OPENSSL_hexstr2buf(opt_arg(), <mp); if (secret_keyid == NULL) { BIO_printf(bio_err, "Invalid id %s\n", opt_arg()); goto opthelp; } secret_keyidlen = (size_t)ltmp; break; case OPT_PWRI_PASSWORD: pwri_pass = (unsigned char *)opt_arg(); break; case OPT_ECONTENT_TYPE: if (econtent_type != NULL) { BIO_printf(bio_err, "Invalid OID (supplied twice) %s\n", opt_arg()); goto opthelp; } econtent_type = OBJ_txt2obj(opt_arg(), 0); if (econtent_type == NULL) { BIO_printf(bio_err, "Invalid OID %s\n", opt_arg()); goto opthelp; } break; case OPT_ENGINE: e = setup_engine(opt_arg(), 0); break; case OPT_PASSIN: passinarg = opt_arg(); break; case OPT_TO: to = opt_arg(); break; case OPT_FROM: from = opt_arg(); break; case OPT_SUBJECT: subject = opt_arg(); break; case OPT_CERTSOUT: certsoutfile = opt_arg(); break; case OPT_MD: if (!opt_md(opt_arg(), &sign_md)) goto end; break; case OPT_SIGNER: /* If previous -signer argument add signer to list */ if (signerfile != NULL) { if (sksigners == NULL && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) goto end; sk_OPENSSL_STRING_push(sksigners, signerfile); if (keyfile == NULL) keyfile = signerfile; if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) goto end; sk_OPENSSL_STRING_push(skkeys, keyfile); keyfile = NULL; } signerfile = opt_arg(); break; case OPT_INKEY: /* If previous -inkey argument add signer to list */ if (keyfile != NULL) { if (signerfile == NULL) { BIO_puts(bio_err, "Illegal -inkey without -signer\n"); goto end; } if (sksigners == NULL && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) goto end; sk_OPENSSL_STRING_push(sksigners, signerfile); signerfile = NULL; if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) goto end; sk_OPENSSL_STRING_push(skkeys, keyfile); } keyfile = opt_arg(); break; case OPT_KEYFORM: if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform)) goto opthelp; break; case OPT_RECIP: if (operation == SMIME_ENCRYPT) { if (encerts == NULL && (encerts = sk_X509_new_null()) == NULL) goto end; cert = load_cert(opt_arg(), FORMAT_PEM, "recipient certificate file"); if (cert == NULL) goto end; sk_X509_push(encerts, cert); cert = NULL; } else { recipfile = opt_arg(); } break; case OPT_CIPHER: if (!opt_cipher(opt_unknown(), &cipher)) goto end; break; case OPT_KEYOPT: keyidx = -1; if (operation == SMIME_ENCRYPT) { if (encerts != NULL) keyidx += sk_X509_num(encerts); } else { if (keyfile != NULL || signerfile != NULL) keyidx++; if (skkeys != NULL) keyidx += sk_OPENSSL_STRING_num(skkeys); } if (keyidx < 0) { BIO_printf(bio_err, "No key specified\n"); goto opthelp; } if (key_param == NULL || key_param->idx != keyidx) { cms_key_param *nparam; nparam = app_malloc(sizeof(*nparam), "key param buffer"); nparam->idx = keyidx; if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL) goto end; nparam->next = NULL; if (key_first == NULL) key_first = nparam; else key_param->next = nparam; key_param = nparam; } sk_OPENSSL_STRING_push(key_param->param, opt_arg()); break; case OPT_V_CASES: if (!opt_verify(o, vpm)) goto end; vpmtouched++; break; case OPT_R_CASES: if (!opt_rand(o)) goto end; break; case OPT_3DES_WRAP: # ifndef OPENSSL_NO_DES wrap_cipher = EVP_des_ede3_wrap(); # endif break; case OPT_AES128_WRAP: wrap_cipher = EVP_aes_128_wrap(); break; case OPT_AES192_WRAP: wrap_cipher = EVP_aes_192_wrap(); break; case OPT_AES256_WRAP: wrap_cipher = EVP_aes_256_wrap(); break; } } argc = opt_num_rest(); argv = opt_rest(); if ((rr_allorfirst != -1 || rr_from != NULL) && rr_to == NULL) { BIO_puts(bio_err, "No Signed Receipts Recipients\n"); goto opthelp; } if (!(operation & SMIME_SIGNERS) && (rr_to != NULL || rr_from != NULL)) { BIO_puts(bio_err, "Signed receipts only allowed with -sign\n"); goto opthelp; } if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) { BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); goto opthelp; } if (operation & SMIME_SIGNERS) { if (keyfile != NULL && signerfile == NULL) { BIO_puts(bio_err, "Illegal -inkey without -signer\n"); goto opthelp; } /* Check to see if any final signer needs to be appended */ if (signerfile != NULL) { if (sksigners == NULL && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) goto end; sk_OPENSSL_STRING_push(sksigners, signerfile); if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) goto end; if (keyfile == NULL) keyfile = signerfile; sk_OPENSSL_STRING_push(skkeys, keyfile); } if (sksigners == NULL) { BIO_printf(bio_err, "No signer certificate specified\n"); goto opthelp; } signerfile = NULL; keyfile = NULL; } else if (operation == SMIME_DECRYPT) { if (recipfile == NULL && keyfile == NULL && secret_key == NULL && pwri_pass == NULL) { BIO_printf(bio_err, "No recipient certificate or key specified\n"); goto opthelp; } } else if (operation == SMIME_ENCRYPT) { if (*argv == NULL && secret_key == NULL && pwri_pass == NULL && encerts == NULL) { BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); goto opthelp; } } else if (!operation) { BIO_printf(bio_err, "No operation option (-encrypt|-decrypt|-sign|-verify|...) specified.\n"); goto opthelp; } if (!app_passwd(passinarg, NULL, &passin, NULL)) { BIO_printf(bio_err, "Error getting password\n"); goto end; } ret = 2; if (!(operation & SMIME_SIGNERS)) flags &= ~CMS_DETACHED; if (!(operation & SMIME_OP)) if (flags & CMS_BINARY) outformat = FORMAT_BINARY; if (!(operation & SMIME_IP)) if (flags & CMS_BINARY) informat = FORMAT_BINARY; if (operation == SMIME_ENCRYPT) { if (!cipher) { # ifndef OPENSSL_NO_DES cipher = EVP_des_ede3_cbc(); # else BIO_printf(bio_err, "No cipher selected\n"); goto end; # endif } if (secret_key && !secret_keyid) { BIO_printf(bio_err, "No secret key id\n"); goto end; } if (*argv && encerts == NULL) if ((encerts = sk_X509_new_null()) == NULL) goto end; while (*argv) { if ((cert = load_cert(*argv, FORMAT_PEM, "recipient certificate file")) == NULL) goto end; sk_X509_push(encerts, cert); cert = NULL; argv++; } } if (certfile != NULL) { if (!load_certs(certfile, &other, FORMAT_PEM, NULL, "certificate file")) { ERR_print_errors(bio_err); goto end; } } if (recipfile != NULL && (operation == SMIME_DECRYPT)) { if ((recip = load_cert(recipfile, FORMAT_PEM, "recipient certificate file")) == NULL) { ERR_print_errors(bio_err); goto end; } } if (operation == SMIME_SIGN_RECEIPT) { if ((signer = load_cert(signerfile, FORMAT_PEM, "receipt signer certificate file")) == NULL) { ERR_print_errors(bio_err); goto end; } } if (operation == SMIME_DECRYPT) { if (keyfile == NULL) keyfile = recipfile; } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) { if (keyfile == NULL) keyfile = signerfile; } else { keyfile = NULL; } if (keyfile != NULL) { key = load_key(keyfile, keyform, 0, passin, e, "signing key file"); if (key == NULL) goto end; } in = bio_open_default(infile, 'r', informat); if (in == NULL) goto end; if (operation & SMIME_IP) { if (informat == FORMAT_SMIME) { cms = SMIME_read_CMS(in, &indata); } else if (informat == FORMAT_PEM) { cms = PEM_read_bio_CMS(in, NULL, NULL, NULL); } else if (informat == FORMAT_ASN1) { cms = d2i_CMS_bio(in, NULL); } else { BIO_printf(bio_err, "Bad input format for CMS file\n"); goto end; } if (cms == NULL) { BIO_printf(bio_err, "Error reading S/MIME message\n"); goto end; } if (contfile != NULL) { BIO_free(indata); if ((indata = BIO_new_file(contfile, "rb")) == NULL) { BIO_printf(bio_err, "Can't read content file %s\n", contfile); goto end; } } if (certsoutfile != NULL) { STACK_OF(X509) *allcerts; allcerts = CMS_get1_certs(cms); if (!save_certs(certsoutfile, allcerts)) { BIO_printf(bio_err, "Error writing certs to %s\n", certsoutfile); ret = 5; goto end; } sk_X509_pop_free(allcerts, X509_free); } } if (rctfile != NULL) { char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r"; if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) { BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile); goto end; } if (rctformat == FORMAT_SMIME) { rcms = SMIME_read_CMS(rctin, NULL); } else if (rctformat == FORMAT_PEM) { rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL); } else if (rctformat == FORMAT_ASN1) { rcms = d2i_CMS_bio(rctin, NULL); } else { BIO_printf(bio_err, "Bad input format for receipt\n"); goto end; } if (rcms == NULL) { BIO_printf(bio_err, "Error reading receipt\n"); goto end; } } out = bio_open_default(outfile, 'w', outformat); if (out == NULL) goto end; if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) { if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL) goto end; X509_STORE_set_verify_cb(store, cms_cb); if (vpmtouched) X509_STORE_set1_param(store, vpm); } ret = 3; if (operation == SMIME_DATA_CREATE) { cms = CMS_data_create(in, flags); } else if (operation == SMIME_DIGEST_CREATE) { cms = CMS_digest_create(in, sign_md, flags); } else if (operation == SMIME_COMPRESS) { cms = CMS_compress(in, -1, flags); } else if (operation == SMIME_ENCRYPT) { int i; flags |= CMS_PARTIAL; cms = CMS_encrypt(NULL, in, cipher, flags); if (cms == NULL) goto end; for (i = 0; i < sk_X509_num(encerts); i++) { CMS_RecipientInfo *ri; cms_key_param *kparam; int tflags = flags; X509 *x = sk_X509_value(encerts, i); for (kparam = key_first; kparam; kparam = kparam->next) { if (kparam->idx == i) { tflags |= CMS_KEY_PARAM; break; } } ri = CMS_add1_recipient_cert(cms, x, tflags); if (ri == NULL) goto end; if (kparam != NULL) { EVP_PKEY_CTX *pctx; pctx = CMS_RecipientInfo_get0_pkey_ctx(ri); if (!cms_set_pkey_param(pctx, kparam->param)) goto end; } if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE && wrap_cipher) { EVP_CIPHER_CTX *wctx; wctx = CMS_RecipientInfo_kari_get0_ctx(ri); EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL); } } if (secret_key != NULL) { if (!CMS_add0_recipient_key(cms, NID_undef, secret_key, secret_keylen, secret_keyid, secret_keyidlen, NULL, NULL, NULL)) goto end; /* NULL these because call absorbs them */ secret_key = NULL; secret_keyid = NULL; } if (pwri_pass != NULL) { pwri_tmp = (unsigned char *)OPENSSL_strdup((char *)pwri_pass); if (pwri_tmp == NULL) goto end; if (CMS_add0_recipient_password(cms, -1, NID_undef, NID_undef, pwri_tmp, -1, NULL) == NULL) goto end; pwri_tmp = NULL; } if (!(flags & CMS_STREAM)) { if (!CMS_final(cms, in, NULL, flags)) goto end; } } else if (operation == SMIME_ENCRYPTED_ENCRYPT) { cms = CMS_EncryptedData_encrypt(in, cipher, secret_key, secret_keylen, flags); } else if (operation == SMIME_SIGN_RECEIPT) { CMS_ContentInfo *srcms = NULL; STACK_OF(CMS_SignerInfo) *sis; CMS_SignerInfo *si; sis = CMS_get0_SignerInfos(cms); if (sis == NULL) goto end; si = sk_CMS_SignerInfo_value(sis, 0); srcms = CMS_sign_receipt(si, signer, key, other, flags); if (srcms == NULL) goto end; CMS_ContentInfo_free(cms); cms = srcms; } else if (operation & SMIME_SIGNERS) { int i; /* * If detached data content we enable streaming if S/MIME output * format. */ if (operation == SMIME_SIGN) { if (flags & CMS_DETACHED) { if (outformat == FORMAT_SMIME) flags |= CMS_STREAM; } flags |= CMS_PARTIAL; cms = CMS_sign(NULL, NULL, other, in, flags); if (cms == NULL) goto end; if (econtent_type != NULL) CMS_set1_eContentType(cms, econtent_type); if (rr_to != NULL) { rr = make_receipt_request(rr_to, rr_allorfirst, rr_from); if (rr == NULL) { BIO_puts(bio_err, "Signed Receipt Request Creation Error\n"); goto end; } } } else { flags |= CMS_REUSE_DIGEST; } for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) { CMS_SignerInfo *si; cms_key_param *kparam; int tflags = flags; signerfile = sk_OPENSSL_STRING_value(sksigners, i); keyfile = sk_OPENSSL_STRING_value(skkeys, i); signer = load_cert(signerfile, FORMAT_PEM, "signer certificate"); if (signer == NULL) { ret = 2; goto end; } key = load_key(keyfile, keyform, 0, passin, e, "signing key file"); if (key == NULL) { ret = 2; goto end; } for (kparam = key_first; kparam; kparam = kparam->next) { if (kparam->idx == i) { tflags |= CMS_KEY_PARAM; break; } } si = CMS_add1_signer(cms, signer, key, sign_md, tflags); if (si == NULL) goto end; if (kparam != NULL) { EVP_PKEY_CTX *pctx; pctx = CMS_SignerInfo_get0_pkey_ctx(si); if (!cms_set_pkey_param(pctx, kparam->param)) goto end; } if (rr != NULL && !CMS_add1_ReceiptRequest(si, rr)) goto end; X509_free(signer); signer = NULL; EVP_PKEY_free(key); key = NULL; } /* If not streaming or resigning finalize structure */ if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) { if (!CMS_final(cms, in, NULL, flags)) goto end; } } if (cms == NULL) { BIO_printf(bio_err, "Error creating CMS structure\n"); goto end; } ret = 4; if (operation == SMIME_DECRYPT) { if (flags & CMS_DEBUG_DECRYPT) CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags); if (secret_key != NULL) { if (!CMS_decrypt_set1_key(cms, secret_key, secret_keylen, secret_keyid, secret_keyidlen)) { BIO_puts(bio_err, "Error decrypting CMS using secret key\n"); goto end; } } if (key != NULL) { if (!CMS_decrypt_set1_pkey(cms, key, recip)) { BIO_puts(bio_err, "Error decrypting CMS using private key\n"); goto end; } } if (pwri_pass != NULL) { if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) { BIO_puts(bio_err, "Error decrypting CMS using password\n"); goto end; } } if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) { BIO_printf(bio_err, "Error decrypting CMS structure\n"); goto end; } } else if (operation == SMIME_DATAOUT) { if (!CMS_data(cms, out, flags)) goto end; } else if (operation == SMIME_UNCOMPRESS) { if (!CMS_uncompress(cms, indata, out, flags)) goto end; } else if (operation == SMIME_DIGEST_VERIFY) { if (CMS_digest_verify(cms, indata, out, flags) > 0) { BIO_printf(bio_err, "Verification successful\n"); } else { BIO_printf(bio_err, "Verification failure\n"); goto end; } } else if (operation == SMIME_ENCRYPTED_DECRYPT) { if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen, indata, out, flags)) goto end; } else if (operation == SMIME_VERIFY) { if (CMS_verify(cms, other, store, indata, out, flags) > 0) { BIO_printf(bio_err, "Verification successful\n"); } else { BIO_printf(bio_err, "Verification failure\n"); if (verify_retcode) ret = verify_err + 32; goto end; } if (signerfile != NULL) { STACK_OF(X509) *signers; signers = CMS_get0_signers(cms); if (!save_certs(signerfile, signers)) { BIO_printf(bio_err, "Error writing signers to %s\n", signerfile); ret = 5; goto end; } sk_X509_free(signers); } if (rr_print) receipt_request_print(cms); } else if (operation == SMIME_VERIFY_RECEIPT) { if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) { BIO_printf(bio_err, "Verification successful\n"); } else { BIO_printf(bio_err, "Verification failure\n"); goto end; } } else { if (noout) { if (print) CMS_ContentInfo_print_ctx(out, cms, 0, NULL); } else if (outformat == FORMAT_SMIME) { if (to) BIO_printf(out, "To: %s%s", to, mime_eol); if (from) BIO_printf(out, "From: %s%s", from, mime_eol); if (subject) BIO_printf(out, "Subject: %s%s", subject, mime_eol); if (operation == SMIME_RESIGN) ret = SMIME_write_CMS(out, cms, indata, flags); else ret = SMIME_write_CMS(out, cms, in, flags); } else if (outformat == FORMAT_PEM) { ret = PEM_write_bio_CMS_stream(out, cms, in, flags); } else if (outformat == FORMAT_ASN1) { ret = i2d_CMS_bio_stream(out, cms, in, flags); } else { BIO_printf(bio_err, "Bad output format for CMS file\n"); goto end; } if (ret <= 0) { ret = 6; goto end; } } ret = 0; end: if (ret) ERR_print_errors(bio_err); sk_X509_pop_free(encerts, X509_free); sk_X509_pop_free(other, X509_free); X509_VERIFY_PARAM_free(vpm); sk_OPENSSL_STRING_free(sksigners); sk_OPENSSL_STRING_free(skkeys); OPENSSL_free(secret_key); OPENSSL_free(secret_keyid); OPENSSL_free(pwri_tmp); ASN1_OBJECT_free(econtent_type); CMS_ReceiptRequest_free(rr); sk_OPENSSL_STRING_free(rr_to); sk_OPENSSL_STRING_free(rr_from); for (key_param = key_first; key_param;) { cms_key_param *tparam; sk_OPENSSL_STRING_free(key_param->param); tparam = key_param->next; OPENSSL_free(key_param); key_param = tparam; } X509_STORE_free(store); X509_free(cert); X509_free(recip); X509_free(signer); EVP_PKEY_free(key); CMS_ContentInfo_free(cms); CMS_ContentInfo_free(rcms); release_engine(e); BIO_free(rctin); BIO_free(in); BIO_free(indata); BIO_free_all(out); OPENSSL_free(passin); return ret; } static int save_certs(char *signerfile, STACK_OF(X509) *signers) { int i; BIO *tmp; if (signerfile == NULL) return 1; tmp = BIO_new_file(signerfile, "w"); if (tmp == NULL) return 0; for (i = 0; i < sk_X509_num(signers); i++) PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); BIO_free(tmp); return 1; } /* Minimal callback just to output policy info (if any) */ static int cms_cb(int ok, X509_STORE_CTX *ctx) { int error; error = X509_STORE_CTX_get_error(ctx); verify_err = error; if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) && ((error != X509_V_OK) || (ok != 2))) return ok; policies_print(ctx); return ok; } static void gnames_stack_print(STACK_OF(GENERAL_NAMES) *gns) { STACK_OF(GENERAL_NAME) *gens; GENERAL_NAME *gen; int i, j; for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) { gens = sk_GENERAL_NAMES_value(gns, i); for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) { gen = sk_GENERAL_NAME_value(gens, j); BIO_puts(bio_err, " "); GENERAL_NAME_print(bio_err, gen); BIO_puts(bio_err, "\n"); } } return; } static void receipt_request_print(CMS_ContentInfo *cms) { STACK_OF(CMS_SignerInfo) *sis; CMS_SignerInfo *si; CMS_ReceiptRequest *rr; int allorfirst; STACK_OF(GENERAL_NAMES) *rto, *rlist; ASN1_STRING *scid; int i, rv; sis = CMS_get0_SignerInfos(cms); for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) { si = sk_CMS_SignerInfo_value(sis, i); rv = CMS_get1_ReceiptRequest(si, &rr); BIO_printf(bio_err, "Signer %d:\n", i + 1); if (rv == 0) { BIO_puts(bio_err, " No Receipt Request\n"); } else if (rv < 0) { BIO_puts(bio_err, " Receipt Request Parse Error\n"); ERR_print_errors(bio_err); } else { const char *id; int idlen; CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst, &rlist, &rto); BIO_puts(bio_err, " Signed Content ID:\n"); idlen = ASN1_STRING_length(scid); id = (const char *)ASN1_STRING_get0_data(scid); BIO_dump_indent(bio_err, id, idlen, 4); BIO_puts(bio_err, " Receipts From"); if (rlist != NULL) { BIO_puts(bio_err, " List:\n"); gnames_stack_print(rlist); } else if (allorfirst == 1) { BIO_puts(bio_err, ": First Tier\n"); } else if (allorfirst == 0) { BIO_puts(bio_err, ": All\n"); } else { BIO_printf(bio_err, " Unknown (%d)\n", allorfirst); } BIO_puts(bio_err, " Receipts To:\n"); gnames_stack_print(rto); } CMS_ReceiptRequest_free(rr); } } static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns) { int i; STACK_OF(GENERAL_NAMES) *ret; GENERAL_NAMES *gens = NULL; GENERAL_NAME *gen = NULL; ret = sk_GENERAL_NAMES_new_null(); if (ret == NULL) goto err; for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) { char *str = sk_OPENSSL_STRING_value(ns, i); gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0); if (gen == NULL) goto err; gens = GENERAL_NAMES_new(); if (gens == NULL) goto err; if (!sk_GENERAL_NAME_push(gens, gen)) goto err; gen = NULL; if (!sk_GENERAL_NAMES_push(ret, gens)) goto err; gens = NULL; } return ret; err: sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free); GENERAL_NAMES_free(gens); GENERAL_NAME_free(gen); return NULL; } static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING) *rr_from) { STACK_OF(GENERAL_NAMES) *rct_to = NULL, *rct_from = NULL; CMS_ReceiptRequest *rr; rct_to = make_names_stack(rr_to); if (rct_to == NULL) goto err; if (rr_from != NULL) { rct_from = make_names_stack(rr_from); if (rct_from == NULL) goto err; } else { rct_from = NULL; } rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from, rct_to); return rr; err: sk_GENERAL_NAMES_pop_free(rct_to, GENERAL_NAMES_free); return NULL; } static int cms_set_pkey_param(EVP_PKEY_CTX *pctx, STACK_OF(OPENSSL_STRING) *param) { char *keyopt; int i; if (sk_OPENSSL_STRING_num(param) <= 0) return 1; for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) { keyopt = sk_OPENSSL_STRING_value(param, i); if (pkey_ctrl_string(pctx, keyopt) <= 0) { BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt); ERR_print_errors(bio_err); return 0; } } return 1; } #endif