X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=ssl%2Ftls13_enc.c;h=266b7dfd21c81259dba3f480ae6b17cebaa50101;hb=2897b00905afdb53458dde387729568342d8910c;hp=edb32902be6b60df83ff30c4dcc2e96756d69aa7;hpb=555cbb328ee2eaa9356cd23e2194c1600653c500;p=openssl.git diff --git a/ssl/tls13_enc.c b/ssl/tls13_enc.c index edb32902be..266b7dfd21 100644 --- a/ssl/tls13_enc.c +++ b/ssl/tls13_enc.c @@ -8,10 +8,11 @@ */ #include -#include "ssl_locl.h" +#include "ssl_local.h" #include "internal/cryptlib.h" #include #include +#include #define TLS13_MAX_LABEL_LEN 249 @@ -30,8 +31,16 @@ int tls13_hkdf_expand(SSL *s, const EVP_MD *md, const unsigned char *secret, const unsigned char *data, size_t datalen, unsigned char *out, size_t outlen, int fatal) { +#ifdef CHARSET_EBCDIC + static const unsigned char label_prefix[] = { 0x74, 0x6C, 0x73, 0x31, 0x33, 0x20, 0x00 }; +#else static const unsigned char label_prefix[] = "tls13 "; - EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, NULL); +#endif + EVP_KDF *kdf = EVP_KDF_fetch(NULL, OSSL_KDF_NAME_HKDF, NULL); + EVP_KDF_CTX *kctx; + OSSL_PARAM params[5], *p = params; + int mode = EVP_PKEY_HKDEF_MODE_EXPAND_ONLY; + const char *mdname = EVP_MD_name(md); int ret; size_t hkdflabellen; size_t hashlen; @@ -45,7 +54,9 @@ int tls13_hkdf_expand(SSL *s, const EVP_MD *md, const unsigned char *secret, + 1 + EVP_MAX_MD_SIZE]; WPACKET pkt; - if (pctx == NULL) + kctx = EVP_KDF_CTX_new(kdf); + EVP_KDF_free(kdf); + if (kctx == NULL) return 0; if (labellen > TLS13_MAX_LABEL_LEN) { @@ -59,7 +70,7 @@ int tls13_hkdf_expand(SSL *s, const EVP_MD *md, const unsigned char *secret, */ SSLerr(SSL_F_TLS13_HKDF_EXPAND, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL); } - EVP_PKEY_CTX_free(pctx); + EVP_KDF_CTX_free(kctx); return 0; } @@ -74,7 +85,7 @@ int tls13_hkdf_expand(SSL *s, const EVP_MD *md, const unsigned char *secret, || !WPACKET_sub_memcpy_u8(&pkt, data, (data == NULL) ? 0 : datalen) || !WPACKET_get_total_written(&pkt, &hkdflabellen) || !WPACKET_finish(&pkt)) { - EVP_PKEY_CTX_free(pctx); + EVP_KDF_CTX_free(kctx); WPACKET_cleanup(&pkt); if (fatal) SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS13_HKDF_EXPAND, @@ -84,15 +95,19 @@ int tls13_hkdf_expand(SSL *s, const EVP_MD *md, const unsigned char *secret, return 0; } - ret = EVP_PKEY_derive_init(pctx) <= 0 - || EVP_PKEY_CTX_hkdf_mode(pctx, EVP_PKEY_HKDEF_MODE_EXPAND_ONLY) - <= 0 - || EVP_PKEY_CTX_set_hkdf_md(pctx, md) <= 0 - || EVP_PKEY_CTX_set1_hkdf_key(pctx, secret, hashlen) <= 0 - || EVP_PKEY_CTX_add1_hkdf_info(pctx, hkdflabel, hkdflabellen) <= 0 - || EVP_PKEY_derive(pctx, out, &outlen) <= 0; + *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode); + *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST, + (char *)mdname, strlen(mdname) + 1); + *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_KEY, + (unsigned char *)secret, hashlen); + *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_INFO, + hkdflabel, hkdflabellen); + *p++ = OSSL_PARAM_construct_end(); - EVP_PKEY_CTX_free(pctx); + ret = EVP_KDF_CTX_set_params(kctx, params) <= 0 + || EVP_KDF_derive(kctx, out, outlen) <= 0; + + EVP_KDF_CTX_free(kctx); if (ret != 0) { if (fatal) @@ -112,7 +127,11 @@ int tls13_hkdf_expand(SSL *s, const EVP_MD *md, const unsigned char *secret, int tls13_derive_key(SSL *s, const EVP_MD *md, const unsigned char *secret, unsigned char *key, size_t keylen) { - static const unsigned char keylabel[] = "key"; +#ifdef CHARSET_EBCDIC + static const unsigned char keylabel[] ={ 0x6B, 0x65, 0x79, 0x00 }; +#else + static const unsigned char keylabel[] = "key"; +#endif return tls13_hkdf_expand(s, md, secret, keylabel, sizeof(keylabel) - 1, NULL, 0, key, keylen, 1); @@ -125,7 +144,11 @@ int tls13_derive_key(SSL *s, const EVP_MD *md, const unsigned char *secret, int tls13_derive_iv(SSL *s, const EVP_MD *md, const unsigned char *secret, unsigned char *iv, size_t ivlen) { - static const unsigned char ivlabel[] = "iv"; +#ifdef CHARSET_EBCDIC + static const unsigned char ivlabel[] = { 0x69, 0x76, 0x00 }; +#else + static const unsigned char ivlabel[] = "iv"; +#endif return tls13_hkdf_expand(s, md, secret, ivlabel, sizeof(ivlabel) - 1, NULL, 0, iv, ivlen, 1); @@ -135,7 +158,11 @@ int tls13_derive_finishedkey(SSL *s, const EVP_MD *md, const unsigned char *secret, unsigned char *fin, size_t finlen) { - static const unsigned char finishedlabel[] = "finished"; +#ifdef CHARSET_EBCDIC + static const unsigned char finishedlabel[] = { 0x66, 0x69, 0x6E, 0x69, 0x73, 0x68, 0x65, 0x64, 0x00 }; +#else + static const unsigned char finishedlabel[] = "finished"; +#endif return tls13_hkdf_expand(s, md, secret, finishedlabel, sizeof(finishedlabel) - 1, NULL, 0, fin, finlen, 1); @@ -155,11 +182,22 @@ int tls13_generate_secret(SSL *s, const EVP_MD *md, size_t mdlen, prevsecretlen; int mdleni; int ret; - EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, NULL); + EVP_KDF *kdf; + EVP_KDF_CTX *kctx; + OSSL_PARAM params[5], *p = params; + int mode = EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY; + const char *mdname = EVP_MD_name(md); +#ifdef CHARSET_EBCDIC + static const char derived_secret_label[] = { 0x64, 0x65, 0x72, 0x69, 0x76, 0x65, 0x64, 0x00 }; +#else static const char derived_secret_label[] = "derived"; +#endif unsigned char preextractsec[EVP_MAX_MD_SIZE]; - if (pctx == NULL) { + kdf = EVP_KDF_fetch(NULL, OSSL_KDF_NAME_HKDF, NULL); + kctx = EVP_KDF_CTX_new(kdf); + EVP_KDF_free(kdf); + if (kctx == NULL) { SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS13_GENERATE_SECRET, ERR_R_INTERNAL_ERROR); return 0; @@ -170,6 +208,7 @@ int tls13_generate_secret(SSL *s, const EVP_MD *md, if (!ossl_assert(mdleni >= 0)) { SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS13_GENERATE_SECRET, ERR_R_INTERNAL_ERROR); + EVP_KDF_CTX_free(kctx); return 0; } mdlen = (size_t)mdleni; @@ -192,7 +231,7 @@ int tls13_generate_secret(SSL *s, const EVP_MD *md, SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS13_GENERATE_SECRET, ERR_R_INTERNAL_ERROR); EVP_MD_CTX_free(mctx); - EVP_PKEY_CTX_free(pctx); + EVP_KDF_CTX_free(kctx); return 0; } EVP_MD_CTX_free(mctx); @@ -203,7 +242,7 @@ int tls13_generate_secret(SSL *s, const EVP_MD *md, sizeof(derived_secret_label) - 1, hash, mdlen, preextractsec, mdlen, 1)) { /* SSLfatal() already called */ - EVP_PKEY_CTX_free(pctx); + EVP_KDF_CTX_free(kctx); return 0; } @@ -211,21 +250,25 @@ int tls13_generate_secret(SSL *s, const EVP_MD *md, prevsecretlen = mdlen; } - ret = EVP_PKEY_derive_init(pctx) <= 0 - || EVP_PKEY_CTX_hkdf_mode(pctx, EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY) - <= 0 - || EVP_PKEY_CTX_set_hkdf_md(pctx, md) <= 0 - || EVP_PKEY_CTX_set1_hkdf_key(pctx, insecret, insecretlen) <= 0 - || EVP_PKEY_CTX_set1_hkdf_salt(pctx, prevsecret, prevsecretlen) - <= 0 - || EVP_PKEY_derive(pctx, outsecret, &mdlen) - <= 0; + *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_MODE, &mode); + *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST, + (char *)mdname, strlen(mdname) + 1); + *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_KEY, + (unsigned char *)insecret, + insecretlen); + *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SALT, + (unsigned char *)prevsecret, + prevsecretlen); + *p++ = OSSL_PARAM_construct_end(); + + ret = EVP_KDF_CTX_set_params(kctx, params) <= 0 + || EVP_KDF_derive(kctx, outsecret, mdlen) <= 0; if (ret != 0) SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS13_GENERATE_SECRET, ERR_R_INTERNAL_ERROR); - EVP_PKEY_CTX_free(pctx); + EVP_KDF_CTX_free(kctx); if (prevsecret == preextractsec) OPENSSL_cleanse(preextractsec, mdlen); return ret == 0; @@ -409,6 +452,16 @@ static int derive_secret_key_and_iv(SSL *s, int sending, const EVP_MD *md, int tls13_change_cipher_state(SSL *s, int which) { +#ifdef CHARSET_EBCDIC + static const unsigned char client_early_traffic[] = {0x63, 0x20, 0x65, 0x20, /*traffic*/0x74, 0x72, 0x61, 0x66, 0x66, 0x69, 0x63, 0x00}; + static const unsigned char client_handshake_traffic[] = {0x63, 0x20, 0x68, 0x73, 0x20, /*traffic*/0x74, 0x72, 0x61, 0x66, 0x66, 0x69, 0x63, 0x00}; + static const unsigned char client_application_traffic[] = {0x63, 0x20, 0x61, 0x70, 0x20, /*traffic*/0x74, 0x72, 0x61, 0x66, 0x66, 0x69, 0x63, 0x00}; + static const unsigned char server_handshake_traffic[] = {0x73, 0x20, 0x68, 0x73, 0x20, /*traffic*/0x74, 0x72, 0x61, 0x66, 0x66, 0x69, 0x63, 0x00}; + static const unsigned char server_application_traffic[] = {0x73, 0x20, 0x61, 0x70, 0x20, /*traffic*/0x74, 0x72, 0x61, 0x66, 0x66, 0x69, 0x63, 0x00}; + static const unsigned char exporter_master_secret[] = {0x65, 0x78, 0x70, 0x20, /* master*/ 0x6D, 0x61, 0x73, 0x74, 0x65, 0x72, 0x00}; + static const unsigned char resumption_master_secret[] = {0x72, 0x65, 0x73, 0x20, /* master*/ 0x6D, 0x61, 0x73, 0x74, 0x65, 0x72, 0x00}; + static const unsigned char early_exporter_master_secret[] = {0x65, 0x20, 0x65, 0x78, 0x70, 0x20, /* master*/ 0x6D, 0x61, 0x73, 0x74, 0x65, 0x72, 0x00}; +#else static const unsigned char client_early_traffic[] = "c e traffic"; static const unsigned char client_handshake_traffic[] = "c hs traffic"; static const unsigned char client_application_traffic[] = "c ap traffic"; @@ -417,6 +470,7 @@ int tls13_change_cipher_state(SSL *s, int which) static const unsigned char exporter_master_secret[] = "exp master"; static const unsigned char resumption_master_secret[] = "res master"; static const unsigned char early_exporter_master_secret[] = "e exp master"; +#endif unsigned char *iv; unsigned char secret[EVP_MAX_MD_SIZE]; unsigned char hashval[EVP_MAX_MD_SIZE]; @@ -684,7 +738,11 @@ int tls13_change_cipher_state(SSL *s, int which) int tls13_update_key(SSL *s, int sending) { - static const unsigned char application_traffic[] = "traffic upd"; +#ifdef CHARSET_EBCDIC + static const unsigned char application_traffic[] = { 0x74, 0x72 ,0x61 ,0x66 ,0x66 ,0x69 ,0x63 ,0x20 ,0x75 ,0x70 ,0x64, 0x00}; +#else + static const unsigned char application_traffic[] = "traffic upd"; +#endif const EVP_MD *md = ssl_handshake_md(s); size_t hashlen = EVP_MD_size(md); unsigned char *insecret, *iv; @@ -741,7 +799,11 @@ int tls13_export_keying_material(SSL *s, unsigned char *out, size_t olen, size_t contextlen, int use_context) { unsigned char exportsecret[EVP_MAX_MD_SIZE]; +#ifdef CHARSET_EBCDIC + static const unsigned char exporterlabel[] = {0x65, 0x78, 0x70, 0x6F, 0x72, 0x74, 0x65, 0x72, 0x00}; +#else static const unsigned char exporterlabel[] = "exporter"; +#endif unsigned char hash[EVP_MAX_MD_SIZE], data[EVP_MAX_MD_SIZE]; const EVP_MD *md = ssl_handshake_md(s); EVP_MD_CTX *ctx = EVP_MD_CTX_new(); @@ -778,7 +840,11 @@ int tls13_export_keying_material_early(SSL *s, unsigned char *out, size_t olen, const unsigned char *context, size_t contextlen) { - static const unsigned char exporterlabel[] = "exporter"; +#ifdef CHARSET_EBCDIC + static const unsigned char exporterlabel[] = {0x65, 0x78, 0x70, 0x6F, 0x72, 0x74, 0x65, 0x72, 0x00}; +#else + static const unsigned char exporterlabel[] = "exporter"; +#endif unsigned char exportsecret[EVP_MAX_MD_SIZE]; unsigned char hash[EVP_MAX_MD_SIZE], data[EVP_MAX_MD_SIZE]; const EVP_MD *md;