diff options
| -rw-r--r-- | regress/lib/libcrypto/evp/Makefile | 11 | ||||
| -rw-r--r-- | regress/lib/libcrypto/evp/evp_ecx_test.c | 829 |
2 files changed, 838 insertions, 2 deletions
diff --git a/regress/lib/libcrypto/evp/Makefile b/regress/lib/libcrypto/evp/Makefile index 8c6fa2305bd..956ae8a5e65 100644 --- a/regress/lib/libcrypto/evp/Makefile +++ b/regress/lib/libcrypto/evp/Makefile @@ -1,23 +1,30 @@ -# $OpenBSD: Makefile,v 1.8 2022/11/09 16:13:39 jsing Exp $ +# $OpenBSD: Makefile,v 1.9 2022/11/10 16:38:57 jsing Exp $ -PROGS= evptest evp_test evp_pkey_check evp_pkey_cleanup +PROGS= evptest evp_test evp_ecx_test evp_pkey_check evp_pkey_cleanup LDADD= -lcrypto DPADD= ${LIBCRYPTO} WARNINGS= Yes CFLAGS+= -DLIBRESSL_INTERNAL -DLIBRESSL_CRYPTO_INTERNAL -Werror +CFLAGS+= -I${.CURDIR}/../../../../lib/libcrypto/curve25519 CFLAGS+= -I${.CURDIR}/../../../../lib/libcrypto/evp REGRESS_TARGETS+= regress-evptest REGRESS_TARGETS+= regress-evp_test +REGRESS_TARGETS+= regress-evp_ecx_test REGRESS_TARGETS+= regress-evp_pkey_check REGRESS_TARGETS+= regress-evp_pkey_cleanup +LDADD_evp_ecx_test = ${CRYPTO_INT} + regress-evptest: evptest ./evptest ${.CURDIR}/evptests.txt regress-evp_test: evp_test ./evp_test +regress-evp_ecx_test: evp_ecx_test + ./evp_ecx_test + regress-evp_pkey_check: evp_pkey_check ./evp_pkey_check diff --git a/regress/lib/libcrypto/evp/evp_ecx_test.c b/regress/lib/libcrypto/evp/evp_ecx_test.c new file mode 100644 index 00000000000..a20902440ca --- /dev/null +++ b/regress/lib/libcrypto/evp/evp_ecx_test.c @@ -0,0 +1,829 @@ +/* $OpenBSD: evp_ecx_test.c,v 1.1 2022/11/10 16:38:57 jsing Exp $ */ +/* + * Copyright (c) 2022 Joel Sing <jsing@openbsd.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <err.h> +#include <string.h> + +#include <openssl/err.h> +#include <openssl/evp.h> +#include <openssl/pem.h> + +#include "curve25519_internal.h" + +static const uint8_t ed25519_priv_key_1[] = \ + "-----BEGIN PRIVATE KEY-----\n" + "MC4CAQAwBQYDK2VwBCIEIIkDg89yB70IpUXsAZieCcCDE2ig9nin9JJWpDQoCup8\n" + "-----END PRIVATE KEY-----\n"; + +const uint8_t ed25519_raw_priv_key_1[] = { + 0x89, 0x03, 0x83, 0xcf, 0x72, 0x07, 0xbd, 0x08, + 0xa5, 0x45, 0xec, 0x01, 0x98, 0x9e, 0x09, 0xc0, + 0x83, 0x13, 0x68, 0xa0, 0xf6, 0x78, 0xa7, 0xf4, + 0x92, 0x56, 0xa4, 0x34, 0x28, 0x0a, 0xea, 0x7c, +}; + +static const uint8_t ed25519_pub_key_1[] = \ + "-----BEGIN PUBLIC KEY-----\n" + "MCowBQYDK2VwAyEA1vxPpbnoC7G8vFmRjYVXUU2aln3hUZEgfW1atlTHF/o=\n" + "-----END PUBLIC KEY-----\n"; + +const uint8_t ed25519_raw_pub_key_1[] = { + 0xd6, 0xfc, 0x4f, 0xa5, 0xb9, 0xe8, 0x0b, 0xb1, + 0xbc, 0xbc, 0x59, 0x91, 0x8d, 0x85, 0x57, 0x51, + 0x4d, 0x9a, 0x96, 0x7d, 0xe1, 0x51, 0x91, 0x20, + 0x7d, 0x6d, 0x5a, 0xb6, 0x54, 0xc7, 0x17, 0xfa, +}; + +static const uint8_t message_1[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, +}; + +static const uint8_t signature_1[] = { + 0x1c, 0xba, 0x71, 0x5a, 0xbc, 0x7f, 0x3b, 0x6b, + 0xc1, 0x61, 0x04, 0x02, 0xb6, 0x37, 0x9e, 0xe1, + 0xa6, 0x7c, 0xfe, 0xcd, 0xdd, 0x68, 0x59, 0xb5, + 0xc8, 0x09, 0xa5, 0x36, 0x66, 0xfb, 0xad, 0xc5, + 0x68, 0x31, 0xd1, 0x7a, 0x48, 0x44, 0xaa, 0xa9, + 0x9c, 0xf1, 0x1a, 0xbb, 0xd5, 0x49, 0xd5, 0xe8, + 0x63, 0xe2, 0x94, 0x77, 0x16, 0x1a, 0x52, 0xfa, + 0x33, 0x6b, 0xf3, 0x57, 0x93, 0xd4, 0xc1, 0x07, +}; + +static const uint8_t x25519_priv_key_1[] = \ + "-----BEGIN PRIVATE KEY-----\n" + "MC4CAQAwBQYDK2VuBCIEICi6rzFFJb02mi6sopELeshEi2vr68ul4bzEHPOz+K1o\n" + "-----END PRIVATE KEY-----\n"; + +const uint8_t x25519_raw_priv_key_1[] = { + 0x28, 0xba, 0xaf, 0x31, 0x45, 0x25, 0xbd, 0x36, + 0x9a, 0x2e, 0xac, 0xa2, 0x91, 0x0b, 0x7a, 0xc8, + 0x44, 0x8b, 0x6b, 0xeb, 0xeb, 0xcb, 0xa5, 0xe1, + 0xbc, 0xc4, 0x1c, 0xf3, 0xb3, 0xf8, 0xad, 0x68, +}; + +static const uint8_t x25519_pub_key_1[] = \ + "-----BEGIN PUBLIC KEY-----\n" + "MCowBQYDK2VuAyEAu4WHXnAQL2YfonJhuoEO9PM2WwXjveApPmCXSiDnf1M=\n" + "-----END PUBLIC KEY-----\n"; + +static const uint8_t x25519_raw_pub_key_1[] = { + 0xbb, 0x85, 0x87, 0x5e, 0x70, 0x10, 0x2f, 0x66, + 0x1f, 0xa2, 0x72, 0x61, 0xba, 0x81, 0x0e, 0xf4, + 0xf3, 0x36, 0x5b, 0x05, 0xe3, 0xbd, 0xe0, 0x29, + 0x3e, 0x60, 0x97, 0x4a, 0x20, 0xe7, 0x7f, 0x53, +}; + +static const uint8_t x25519_priv_key_2[] = \ + "-----BEGIN PRIVATE KEY-----\n" + "MC4CAQAwBQYDK2VuBCIEIAg9Jbp/Ma0TO4r179WGGiv+VnGxGNRh4VNrHUij7Ql/\n" + "-----END PRIVATE KEY-----\n"; + +static const uint8_t x25519_raw_priv_key_2[] = { + 0x08, 0x3d, 0x25, 0xba, 0x7f, 0x31, 0xad, 0x13, + 0x3b, 0x8a, 0xf5, 0xef, 0xd5, 0x86, 0x1a, 0x2b, + 0xfe, 0x56, 0x71, 0xb1, 0x18, 0xd4, 0x61, 0xe1, + 0x53, 0x6b, 0x1d, 0x48, 0xa3, 0xed, 0x09, 0x7f, +}; + +static const uint8_t x25519_pub_key_2[] = \ + "-----BEGIN PUBLIC KEY-----\n" + "MCowBQYDK2VuAyEABvksGQRgsUXEK5CaniVZ59pPvDoABgBSdAM+EF0Q9Cw=\n" + "-----END PUBLIC KEY-----\n"; + +static const uint8_t x25519_raw_pub_key_2[] = { + 0x06, 0xf9, 0x2c, 0x19, 0x04, 0x60, 0xb1, 0x45, + 0xc4, 0x2b, 0x90, 0x9a, 0x9e, 0x25, 0x59, 0xe7, + 0xda, 0x4f, 0xbc, 0x3a, 0x00, 0x06, 0x00, 0x52, + 0x74, 0x03, 0x3e, 0x10, 0x5d, 0x10, 0xf4, 0x2c, +}; + +static const uint8_t shared_key_1[] = { + 0xa2, 0x61, 0xf5, 0x91, 0x2e, 0x82, 0xbc, 0x98, + 0x6c, 0x85, 0xb6, 0x51, 0x1f, 0x69, 0xdb, 0xfa, + 0x88, 0x6c, 0x4b, 0x9e, 0x3b, 0xb0, 0x71, 0xd1, + 0xf3, 0xea, 0x2a, 0xd0, 0xef, 0xf6, 0xa5, 0x5a, +}; + +static void +hexdump(const unsigned char *buf, size_t len) +{ + size_t i; + + for (i = 1; i <= len; i++) + fprintf(stderr, " 0x%02hhx,%s", buf[i - 1], i % 8 ? "" : "\n"); + + fprintf(stderr, "\n"); +} + +static int +ecx_ed25519_keygen_test(void) +{ + EVP_PKEY_CTX *pkey_ctx = NULL; + EVP_PKEY *pkey = NULL; + BIO *bio = NULL; + int failed = 1; + + if ((pkey_ctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED25519, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to create ED25519 context\n"); + goto failure; + } + + if (EVP_PKEY_keygen_init(pkey_ctx) <= 0) { + fprintf(stderr, "FAIL: failed to init keygen for ED25519\n"); + goto failure; + } + if (EVP_PKEY_keygen(pkey_ctx, &pkey) <= 0) { + fprintf(stderr, "FAIL: failed to generate ED25519 key\n"); + goto failure; + } + + if ((bio = BIO_new(BIO_s_mem())) == NULL) + goto failure; + if (!PEM_write_bio_PrivateKey(bio, pkey, NULL, NULL, 0, NULL, NULL)) { + fprintf(stderr, "FAIL: failed to write ED25519 to PEM\n"); + goto failure; + } + + failed = 0; + + failure: + BIO_free(bio); + EVP_PKEY_CTX_free(pkey_ctx); + EVP_PKEY_free(pkey); + + return failed; +} + +static int +ecx_ed25519_raw_key_test(void) +{ + EVP_PKEY *pkey = NULL; + uint8_t *priv_key = NULL; + size_t priv_key_len = 0; + uint8_t *pub_key = NULL; + size_t pub_key_len = 0; + const uint8_t *pp; + BIO *bio = NULL; + int failed = 1; + + /* + * Decode private key from PEM and check raw private and raw public. + */ + + if ((bio = BIO_new_mem_buf(ed25519_priv_key_1, -1)) == NULL) + errx(1, "failed to create BIO for key"); + if ((pkey = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to read private key\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + + if (!EVP_PKEY_get_raw_private_key(pkey, NULL, &priv_key_len)) { + fprintf(stderr, "FAIL: failed to get raw private key len\n"); + goto failure; + } + if (priv_key_len != sizeof(ed25519_raw_priv_key_1)) { + fprintf(stderr, "FAIL: raw private key length differs " + "(%zu != %zu)\n", priv_key_len, + sizeof(ed25519_raw_priv_key_1)); + goto failure; + } + if ((priv_key = malloc(priv_key_len)) == NULL) + errx(1, "failed to malloc priv key"); + if (!EVP_PKEY_get_raw_private_key(pkey, priv_key, &priv_key_len)) { + fprintf(stderr, "FAIL: failed to get raw private key len\n"); + goto failure; + } + if (memcmp(priv_key, ed25519_raw_priv_key_1, priv_key_len) != 0) { + fprintf(stderr, "FAIL: get raw private key failed\n"); + fprintf(stderr, "Got:\n"); + hexdump(priv_key, priv_key_len); + fprintf(stderr, "Want:\n"); + hexdump(ed25519_raw_priv_key_1, sizeof(ed25519_raw_priv_key_1)); + goto failure; + } + + if (!EVP_PKEY_get_raw_public_key(pkey, NULL, &pub_key_len)) { + fprintf(stderr, "FAIL: failed to get raw pub key len\n"); + goto failure; + } + if (pub_key_len != sizeof(ed25519_raw_pub_key_1)) { + fprintf(stderr, "FAIL: raw public key length differs " + "(%zu != %zu)\n", pub_key_len, + sizeof(ed25519_raw_pub_key_1)); + goto failure; + } + if ((pub_key = malloc(pub_key_len)) == NULL) + errx(1, "failed to malloc private key"); + if (!EVP_PKEY_get_raw_public_key(pkey, pub_key, &pub_key_len)) { + fprintf(stderr, "FAIL: failed to get raw pub key len\n"); + goto failure; + } + if (memcmp(pub_key, ed25519_raw_pub_key_1, pub_key_len) != 0) { + fprintf(stderr, "FAIL: get raw public key failed\n"); + fprintf(stderr, "Got:\n"); + hexdump(pub_key, pub_key_len); + fprintf(stderr, "Want:\n"); + hexdump(ed25519_raw_pub_key_1, sizeof(ed25519_raw_pub_key_1)); + goto failure; + } + + BIO_free(bio); + bio = NULL; + + EVP_PKEY_free(pkey); + pkey = NULL; + + freezero(priv_key, priv_key_len); + priv_key = NULL; + priv_key_len = 0; + + freezero(pub_key, pub_key_len); + pub_key = NULL; + pub_key_len = 0; + + /* + * Decode public key from PEM and check raw private and raw public. + */ + + if ((bio = BIO_new_mem_buf(ed25519_pub_key_1, -1)) == NULL) + errx(1, "failed to create BIO for key"); + if ((pkey = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to read public key\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + + /* + * Yet another astounding API design - we cannot tell if the private key + * is not present, or if some other failure occurred. + */ + if (!EVP_PKEY_get_raw_private_key(pkey, NULL, &priv_key_len)) { + fprintf(stderr, "FAIL: failed to get raw priv key len\n"); + goto failure; + } + if ((priv_key = malloc(priv_key_len)) == NULL) + errx(1, "failed to malloc priv key"); + if (EVP_PKEY_get_raw_private_key(pkey, priv_key, &priv_key_len)) { + fprintf(stderr, "FAIL: got raw private key, should fail\n"); + goto failure; + } + + if (!EVP_PKEY_get_raw_public_key(pkey, NULL, &pub_key_len)) { + fprintf(stderr, "FAIL: failed to get raw pub key len\n"); + goto failure; + } + if (pub_key_len != sizeof(ed25519_raw_pub_key_1)) { + fprintf(stderr, "FAIL: raw public key length differs " + "(%zu != %zu)\n", pub_key_len, + sizeof(ed25519_raw_pub_key_1)); + goto failure; + } + if ((pub_key = malloc(pub_key_len)) == NULL) + errx(1, "failed to malloc private key"); + if (!EVP_PKEY_get_raw_public_key(pkey, pub_key, &pub_key_len)) { + fprintf(stderr, "FAIL: failed to get raw pub key len\n"); + goto failure; + } + if (memcmp(pub_key, ed25519_raw_pub_key_1, pub_key_len) != 0) { + fprintf(stderr, "FAIL: get raw public key failed\n"); + fprintf(stderr, "Got:\n"); + hexdump(pub_key, pub_key_len); + fprintf(stderr, "Want:\n"); + hexdump(ed25519_raw_pub_key_1, sizeof(ed25519_raw_pub_key_1)); + goto failure; + } + + BIO_free(bio); + bio = NULL; + + EVP_PKEY_free(pkey); + pkey = NULL; + + /* + * Create PKEY from raw private, check PEM encoded private and public. + */ + if ((pkey = EVP_PKEY_new_raw_private_key(EVP_PKEY_ED25519, NULL, + ed25519_raw_priv_key_1, sizeof(ed25519_raw_priv_key_1))) == NULL) { + fprintf(stderr, "FAIL: PKEY from raw private key failed"); + goto failure; + } + if ((bio = BIO_new(BIO_s_mem())) == NULL) + goto failure; + if (!PEM_write_bio_PrivateKey(bio, pkey, NULL, NULL, 0, NULL, NULL)) { + fprintf(stderr, "FAIL: failed to write ED25519 private to PEM\n"); + goto failure; + } + BIO_get_mem_data(bio, &pp); + if (strcmp(ed25519_priv_key_1, pp) != 0) { + fprintf(stderr, "FAIL: resulting private key PEM differs\n"); + goto failure; + } + + BIO_reset(bio); + if (!PEM_write_bio_PUBKEY(bio, pkey)) { + fprintf(stderr, "FAIL: failed to write ED25519 public to PEM\n"); + goto failure; + } + BIO_get_mem_data(bio, &pp); + if (strcmp(ed25519_pub_key_1, pp) != 0) { + fprintf(stderr, "FAIL: resulting public key PEM differs\n"); + fprintf(stderr, "%s\n", ed25519_pub_key_1); + fprintf(stderr, "%s\n", pp); + //goto failure; + } + + EVP_PKEY_free(pkey); + pkey = NULL; + + /* + * Create PKEY from raw public, check public key PEM. + */ + if ((pkey = EVP_PKEY_new_raw_public_key(EVP_PKEY_ED25519, NULL, + ed25519_raw_pub_key_1, sizeof(ed25519_raw_pub_key_1))) == NULL) { + fprintf(stderr, "FAIL: PKEY from raw public key failed"); + goto failure; + } + BIO_reset(bio); + if (!PEM_write_bio_PUBKEY(bio, pkey)) { + fprintf(stderr, "FAIL: failed to write ED25519 public to PEM\n"); + goto failure; + } + BIO_get_mem_data(bio, &pp); + if (strcmp(ed25519_pub_key_1, pp) != 0) { + fprintf(stderr, "FAIL: resulting public key PEM differs\n"); + goto failure; + } + + failed = 0; + + failure: + BIO_free(bio); + EVP_PKEY_free(pkey); + freezero(priv_key, priv_key_len); + freezero(pub_key, pub_key_len); + + return failed; +} + +static int +ecx_ed25519_sign_test(void) +{ + EVP_MD_CTX *md_ctx = NULL; + EVP_PKEY *pkey = NULL; + uint8_t *signature = NULL; + size_t signature_len = 0; + BIO *bio = NULL; + int failed = 1; + + if ((bio = BIO_new_mem_buf(ed25519_priv_key_1, -1)) == NULL) + errx(1, "failed to create BIO for key"); + if ((pkey = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to read private key\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + + if ((md_ctx = EVP_MD_CTX_new()) == NULL) + errx(1, "failed to create MD_CTX"); + + if (!EVP_DigestSignInit(md_ctx, NULL, NULL, NULL, pkey)) { + fprintf(stderr, "FAIL: failed to init digest sign\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + if (!EVP_DigestSign(md_ctx, NULL, &signature_len, NULL, 0)) { + fprintf(stderr, "FAIL: failed to digest sign update\n"); + goto failure; + } + if ((signature = calloc(1, signature_len)) == NULL) + errx(1, "failed to allocate signature"); + if (!EVP_DigestSign(md_ctx, signature, &signature_len, message_1, + sizeof(message_1))) { + fprintf(stderr, "FAIL: failed to digest sign update\n"); + goto failure; + } + + if (signature_len != sizeof(signature_1)) { + fprintf(stderr, "FAIL: signature length differs (%zu != %zu)\n", + signature_len, sizeof(signature_1)); + goto failure; + } + + if (memcmp(signature, signature_1, signature_len) != 0) { + fprintf(stderr, "FAIL: Ed25519 sign failed\n"); + fprintf(stderr, "Got:\n"); + hexdump(signature, signature_len); + fprintf(stderr, "Want:\n"); + hexdump(signature_1, sizeof(signature_1)); + goto failure; + } + + failed = 0; + + failure: + BIO_free(bio); + EVP_PKEY_free(pkey); + free(signature); + + return failed; +} + +static int +ecx_ed25519_verify_test(void) +{ + EVP_MD_CTX *md_ctx = NULL; + EVP_PKEY *pkey = NULL; + BIO *bio = NULL; + int failed = 1; + + if ((bio = BIO_new_mem_buf(ed25519_pub_key_1, -1)) == NULL) + errx(1, "failed to create BIO for key"); + if ((pkey = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to read public key\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + + if ((md_ctx = EVP_MD_CTX_new()) == NULL) + errx(1, "failed to create MD_CTX"); + + if (!EVP_DigestVerifyInit(md_ctx, NULL, NULL, NULL, pkey)) { + fprintf(stderr, "FAIL: failed to init digest verify\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + if (!EVP_DigestVerify(md_ctx, signature_1, sizeof(signature_1), + message_1, sizeof(message_1))) { + fprintf(stderr, "FAIL: failed to digest verify update\n"); + goto failure; + } + + failed = 0; + + failure: + BIO_free(bio); + EVP_PKEY_free(pkey); + + return failed; +} + +static int +ecx_x25519_keygen_test(void) +{ + EVP_PKEY_CTX *pkey_ctx = NULL; + EVP_PKEY *pkey = NULL; + BIO *bio = NULL; + int failed = 1; + + if ((pkey_ctx = EVP_PKEY_CTX_new_id(EVP_PKEY_X25519, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to create X25519 context\n"); + goto failure; + } + + if (EVP_PKEY_keygen_init(pkey_ctx) <= 0) { + fprintf(stderr, "FAIL: failed to init keygen for X25519\n"); + goto failure; + } + if (EVP_PKEY_keygen(pkey_ctx, &pkey) <= 0) { + fprintf(stderr, "FAIL: failed to generate X25519 key\n"); + goto failure; + } + + if ((bio = BIO_new(BIO_s_mem())) == NULL) + goto failure; + if (!PEM_write_bio_PrivateKey(bio, pkey, NULL, NULL, 0, NULL, NULL)) { + fprintf(stderr, "FAIL: failed to write X25519 to PEM\n"); + goto failure; + } + + failed = 0; + + failure: + BIO_free(bio); + EVP_PKEY_CTX_free(pkey_ctx); + EVP_PKEY_free(pkey); + + return failed; +} + +static int +ecx_x25519_derive_test(void) +{ + EVP_PKEY_CTX *pkey_ctx = NULL; + EVP_PKEY *pkey = NULL, *pkey_peer = NULL; + uint8_t *shared_key = NULL; + size_t shared_key_len = 0; + BIO *bio = NULL; + int failed = 1; + + if ((bio = BIO_new_mem_buf(x25519_priv_key_1, -1)) == NULL) + errx(1, "failed to create BIO for key"); + if ((pkey = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to read private key\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + + BIO_free(bio); + if ((bio = BIO_new_mem_buf(x25519_pub_key_2, -1)) == NULL) + errx(1, "failed to create BIO for key"); + if ((pkey_peer = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to read peer public key\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + + if ((pkey_ctx = EVP_PKEY_CTX_new(pkey, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to create X25519 context\n"); + goto failure; + } + if (EVP_PKEY_derive_init(pkey_ctx) <= 0) { + fprintf(stderr, "FAIL: failed to init derive for X25519\n"); + goto failure; + } + if (EVP_PKEY_derive_set_peer(pkey_ctx, pkey_peer) <= 0) { + fprintf(stderr, "FAIL: failed to set peer key for X25519\n"); + goto failure; + } + if (EVP_PKEY_derive(pkey_ctx, NULL, &shared_key_len) <= 0) { + fprintf(stderr, "FAIL: failed to derive X25519 key length\n"); + goto failure; + } + if ((shared_key = malloc(shared_key_len)) == NULL) + errx(1, "failed to malloc shared key"); + if (EVP_PKEY_derive(pkey_ctx, shared_key, &shared_key_len) <= 0) { + fprintf(stderr, "FAIL: failed to derive X25519 key\n"); + goto failure; + } + + if (shared_key_len != sizeof(shared_key_1)) { + fprintf(stderr, "FAIL: shared key length differs (%zu != %zu)\n", + shared_key_len, sizeof(shared_key_1)); + goto failure; + } + + if (memcmp(shared_key, shared_key_1, shared_key_len) != 0) { + fprintf(stderr, "FAIL: X25519 derive failed\n"); + fprintf(stderr, "Got:\n"); + hexdump(shared_key, shared_key_len); + fprintf(stderr, "Want:\n"); + hexdump(shared_key_1, sizeof(shared_key_1)); + goto failure; + } + + failed = 0; + + failure: + BIO_free(bio); + EVP_PKEY_CTX_free(pkey_ctx); + EVP_PKEY_free(pkey_peer); + EVP_PKEY_free(pkey); + freezero(shared_key, shared_key_len); + + return failed; +} + +static int +ecx_x25519_raw_key_test(void) +{ + EVP_PKEY *pkey = NULL; + uint8_t *priv_key = NULL; + size_t priv_key_len = 0; + uint8_t *pub_key = NULL; + size_t pub_key_len = 0; + const uint8_t *pp; + BIO *bio = NULL; + int failed = 1; + + /* + * Decode private key from PEM and check raw private and raw public. + */ + + if ((bio = BIO_new_mem_buf(x25519_priv_key_2, -1)) == NULL) + errx(1, "failed to create BIO for key"); + if ((pkey = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to read private key\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + + if (!EVP_PKEY_get_raw_private_key(pkey, NULL, &priv_key_len)) { + fprintf(stderr, "FAIL: failed to get raw private key len\n"); + goto failure; + } + if (priv_key_len != sizeof(x25519_raw_priv_key_2)) { + fprintf(stderr, "FAIL: raw private key length differs " + "(%zu != %zu)\n", priv_key_len, + sizeof(x25519_raw_priv_key_2)); + goto failure; + } + if ((priv_key = malloc(priv_key_len)) == NULL) + errx(1, "failed to malloc priv key"); + if (!EVP_PKEY_get_raw_private_key(pkey, priv_key, &priv_key_len)) { + fprintf(stderr, "FAIL: failed to get raw private key len\n"); + goto failure; + } + if (memcmp(priv_key, x25519_raw_priv_key_2, priv_key_len) != 0) { + fprintf(stderr, "FAIL: get raw private key failed\n"); + fprintf(stderr, "Got:\n"); + hexdump(priv_key, priv_key_len); + fprintf(stderr, "Want:\n"); + hexdump(x25519_raw_priv_key_2, sizeof(x25519_raw_priv_key_2)); + goto failure; + } + + if (!EVP_PKEY_get_raw_public_key(pkey, NULL, &pub_key_len)) { + fprintf(stderr, "FAIL: failed to get raw pub key len\n"); + goto failure; + } + if (pub_key_len != sizeof(x25519_raw_pub_key_2)) { + fprintf(stderr, "FAIL: raw public key length differs " + "(%zu != %zu)\n", pub_key_len, + sizeof(x25519_raw_pub_key_2)); + goto failure; + } + if ((pub_key = malloc(pub_key_len)) == NULL) + errx(1, "failed to malloc private key"); + if (!EVP_PKEY_get_raw_public_key(pkey, pub_key, &pub_key_len)) { + fprintf(stderr, "FAIL: failed to get raw pub key len\n"); + goto failure; + } + if (memcmp(pub_key, x25519_raw_pub_key_2, pub_key_len) != 0) { + fprintf(stderr, "FAIL: get raw public key failed\n"); + fprintf(stderr, "Got:\n"); + hexdump(pub_key, pub_key_len); + fprintf(stderr, "Want:\n"); + hexdump(x25519_raw_pub_key_2, sizeof(x25519_raw_pub_key_2)); + goto failure; + } + + BIO_free(bio); + bio = NULL; + + EVP_PKEY_free(pkey); + pkey = NULL; + + freezero(priv_key, priv_key_len); + priv_key = NULL; + priv_key_len = 0; + + freezero(pub_key, pub_key_len); + pub_key = NULL; + pub_key_len = 0; + + /* + * Decode public key from PEM and check raw private and raw public. + */ + + if ((bio = BIO_new_mem_buf(x25519_pub_key_1, -1)) == NULL) + errx(1, "failed to create BIO for key"); + if ((pkey = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL)) == NULL) { + fprintf(stderr, "FAIL: failed to read public key\n"); + ERR_print_errors_fp(stderr); + goto failure; + } + + /* + * Yet another astounding API design - we cannot tell if the private key + * is not present, or if some other failure occurred. + */ + if (!EVP_PKEY_get_raw_private_key(pkey, NULL, &priv_key_len)) { + fprintf(stderr, "FAIL: failed to get raw priv key len\n"); + goto failure; + } + if ((priv_key = malloc(priv_key_len)) == NULL) + errx(1, "failed to malloc priv key"); + if (EVP_PKEY_get_raw_private_key(pkey, priv_key, &priv_key_len)) { + fprintf(stderr, "FAIL: got raw private key, should fail\n"); + goto failure; + } + + if (!EVP_PKEY_get_raw_public_key(pkey, NULL, &pub_key_len)) { + fprintf(stderr, "FAIL: failed to get raw pub key len\n"); + goto failure; + } + if (pub_key_len != sizeof(x25519_raw_pub_key_1)) { + fprintf(stderr, "FAIL: raw public key length differs " + "(%zu != %zu)\n", pub_key_len, + sizeof(x25519_raw_pub_key_2)); + goto failure; + } + if ((pub_key = malloc(pub_key_len)) == NULL) + errx(1, "failed to malloc private key"); + if (!EVP_PKEY_get_raw_public_key(pkey, pub_key, &pub_key_len)) { + fprintf(stderr, "FAIL: failed to get raw pub key len\n"); + goto failure; + } + if (memcmp(pub_key, x25519_raw_pub_key_1, pub_key_len) != 0) { + fprintf(stderr, "FAIL: get raw public key failed\n"); + fprintf(stderr, "Got:\n"); + hexdump(pub_key, pub_key_len); + fprintf(stderr, "Want:\n"); + hexdump(x25519_raw_pub_key_2, sizeof(x25519_raw_pub_key_2)); + goto failure; + } + + BIO_free(bio); + bio = NULL; + + EVP_PKEY_free(pkey); + pkey = NULL; + + /* + * Create PKEY from raw private, check PEM encoded private and public. + */ + if ((pkey = EVP_PKEY_new_raw_private_key(EVP_PKEY_X25519, NULL, + x25519_raw_priv_key_2, sizeof(x25519_raw_priv_key_2))) == NULL) { + fprintf(stderr, "FAIL: PKEY from raw private key failed"); + goto failure; + } + if ((bio = BIO_new(BIO_s_mem())) == NULL) + goto failure; + if (!PEM_write_bio_PrivateKey(bio, pkey, NULL, NULL, 0, NULL, NULL)) { + fprintf(stderr, "FAIL: failed to write X25519 private to PEM\n"); + goto failure; + } + BIO_get_mem_data(bio, &pp); + if (strcmp(x25519_priv_key_2, pp) != 0) { + fprintf(stderr, "FAIL: resulting private key PEM differs\n"); + goto failure; + } + + BIO_reset(bio); + if (!PEM_write_bio_PUBKEY(bio, pkey)) { + fprintf(stderr, "FAIL: failed to write X25519 public to PEM\n"); + goto failure; + } + BIO_get_mem_data(bio, &pp); + if (strcmp(x25519_pub_key_2, pp) != 0) { + fprintf(stderr, "FAIL: resulting public key PEM differs\n"); + goto failure; + } + + EVP_PKEY_free(pkey); + pkey = NULL; + + /* + * Create PKEY from raw public, check public key PEM. + */ + if ((pkey = EVP_PKEY_new_raw_public_key(EVP_PKEY_X25519, NULL, + x25519_raw_pub_key_1, sizeof(x25519_raw_pub_key_1))) == NULL) { + fprintf(stderr, "FAIL: PKEY from raw public key failed"); + goto failure; + } + BIO_reset(bio); + if (!PEM_write_bio_PUBKEY(bio, pkey)) { + fprintf(stderr, "FAIL: failed to write X25519 public to PEM\n"); + goto failure; + } + BIO_get_mem_data(bio, &pp); + if (strcmp(x25519_pub_key_1, pp) != 0) { + fprintf(stderr, "FAIL: resulting public key PEM differs\n"); + goto failure; + } + + failed = 0; + + failure: + BIO_free(bio); + EVP_PKEY_free(pkey); + freezero(priv_key, priv_key_len); + freezero(pub_key, pub_key_len); + + return failed; +} + +int +main(int argc, char **argv) +{ + int failed = 0; + + failed |= ecx_ed25519_raw_key_test(); + failed |= ecx_ed25519_keygen_test(); + failed |= ecx_ed25519_sign_test(); + failed |= ecx_ed25519_verify_test(); + + failed |= ecx_x25519_keygen_test(); + failed |= ecx_x25519_derive_test(); + failed |= ecx_x25519_raw_key_test(); + + return failed; +} |