TclTLS
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Overview
Comment:Added description and provider to cipher, digest, mac, and pkey info commands. This only work for OpenSSL 3.0+.
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SHA3-256: 968f8bf25be359fbe919b3393e079b381e36fdd0269a66d5c93b5b2065202012
User & Date: bohagan on 2024-03-31 20:57:43
Other Links: branch diff | manifest | tags
Context
2024-04-07
20:52
Added RC4 stream cipher test vectors check-in: 6e07821c1e user: bohagan tags: crypto
2024-03-31
20:57
Added description and provider to cipher, digest, mac, and pkey info commands. This only work for OpenSSL 3.0+. check-in: 968f8bf25b user: bohagan tags: crypto
03:12
Added DES test vectors check-in: 66cee0f83a user: bohagan tags: crypto
Changes
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Modified generic/tlsInfo.c from [28c894841a] to [c3297cae77].

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 *
 *-------------------------------------------------------------------
 */
int CipherInfo(Tcl_Interp *interp, Tcl_Obj *nameObj) {
    const EVP_CIPHER *cipher;
    Tcl_Obj *resultObj, *listObj;
    unsigned long flags, mode;
    int res = TCL_OK;
    char *modeName = NULL;
    char *name = Tcl_GetString(nameObj);

    /* Get cipher */
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    cipher = EVP_get_cipherbyname(name);
#else
    cipher = EVP_CIPHER_fetch(NULL, name, NULL);
#endif

    if (cipher == NULL) {
	Tcl_AppendResult(interp, "Invalid cipher \"", name, "\"", (char *) NULL);
	return TCL_ERROR;
    }

    /* Get properties */
    /* Create result object */
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
	res = TCL_ERROR;
	goto done;
    }

    /* Get properties */
    LAPPEND_STR(interp, resultObj, "nid", OBJ_nid2ln(EVP_CIPHER_nid(cipher)), -1);
    LAPPEND_STR(interp, resultObj, "name", EVP_CIPHER_name(cipher), -1);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    LAPPEND_STR(interp, resultObj, "description", "", -1);
#else
    LAPPEND_STR(interp, resultObj, "description", EVP_CIPHER_get0_description(cipher), -1);
#endif
    LAPPEND_INT(interp, resultObj, "block_size", EVP_CIPHER_block_size(cipher));
    LAPPEND_INT(interp, resultObj, "key_length", EVP_CIPHER_key_length(cipher));
    LAPPEND_INT(interp, resultObj, "iv_length", EVP_CIPHER_iv_length(cipher));
    LAPPEND_STR(interp, resultObj, "type", OBJ_nid2ln(EVP_CIPHER_type(cipher)), -1);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    LAPPEND_STR(interp, resultObj, "provider", "", -1);
#else
    LAPPEND_STR(interp, resultObj, "provider", OSSL_PROVIDER_get0_name(EVP_CIPHER_get0_provider(cipher)), -1);
#endif
    flags = EVP_CIPHER_flags(cipher);
    mode  = EVP_CIPHER_mode(cipher);

    /* EVP_CIPHER_get_mode */
    switch(mode) {
	case EVP_CIPH_STREAM_CIPHER:
	    modeName = "STREAM";
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    /* CTX only properties */
    {
	EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
	int tag_len = 0;

	EVP_EncryptInit_ex(ctx, cipher, NULL, NULL, NULL);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
	if (mode == EVP_CIPH_GCM_MODE || mode == EVP_CIPH_OCB_MODE) {
	    tag_len = EVP_GCM_TLS_TAG_LEN; /* EVP_MAX_AEAD_TAG_LENGTH */
	} else if (mode == EVP_CIPH_CCM_MODE) {
	    tag_len = EVP_CCM_TLS_TAG_LEN;
	} else if (cipher == EVP_get_cipherbyname("chacha20-poly1305")) {
	    tag_len = EVP_CHACHAPOLY_TLS_TAG_LEN; /* POLY1305_BLOCK_SIZE */
	}
#else
	tag_len = EVP_CIPHER_CTX_get_tag_length(ctx);
#endif
	EVP_CIPHER_CTX_free(ctx);
	LAPPEND_INT(interp, resultObj, "tag_length", tag_len);
    }
    
    /* AEAD properties */
    {
	int aad_len = 0;
	if (flags & EVP_CIPH_FLAG_AEAD_CIPHER) {
	    aad_len = EVP_AEAD_TLS1_AAD_LEN;
	}
	LAPPEND_INT(interp, resultObj, "aad_length", aad_len);
    }

    Tcl_SetObjResult(interp, resultObj);

done:
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
    EVP_CIPHER_free(cipher);
#endif
    return TCL_OK;
    return res;
}

/*
 *-------------------------------------------------------------------
 *
 * CipherList --
 *
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 *
 *-------------------------------------------------------------------
 */
int DigestInfo(Tcl_Interp *interp, Tcl_Obj *nameObj) {
    const EVP_MD *md;
    Tcl_Obj *resultObj, *listObj;
    unsigned long flags;
    int res = TCL_OK;
    char *name = Tcl_GetString(nameObj);

    /* Get message digest */
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    md = EVP_get_digestbyname(name);
#else
    md = EVP_MD_fetch(NULL, name, NULL);
#endif

    if (md == NULL) {
	Tcl_AppendResult(interp, "Invalid digest \"", name, "\"", (char *) NULL);
	return TCL_ERROR;
    }

    /* Get properties */
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
	res = TCL_ERROR;
	goto done;
    }
    LAPPEND_STR(interp, resultObj, "name", EVP_MD_name(md), -1);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    LAPPEND_STR(interp, resultObj, "description", "", -1);
#else
    LAPPEND_STR(interp, resultObj, "description", EVP_MD_get0_description(md), -1);
#endif
    LAPPEND_INT(interp, resultObj, "size", EVP_MD_size(md));
    LAPPEND_INT(interp, resultObj, "block_size", EVP_MD_block_size(md));
    LAPPEND_STR(interp, resultObj, "provider", "", -1);
    LAPPEND_STR(interp, resultObj, "type", OBJ_nid2ln(EVP_MD_type(md)), -1);
    LAPPEND_STR(interp, resultObj, "pkey_type", OBJ_nid2ln(EVP_MD_pkey_type(md)), -1);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    LAPPEND_STR(interp, resultObj, "provider", "", -1);
#else
    LAPPEND_STR(interp, resultObj, "provider", OSSL_PROVIDER_get0_name(EVP_MD_get0_provider(md)), -1);
#endif
    flags = EVP_MD_flags(md);

    /* Flags */
    listObj = Tcl_NewListObj(0, NULL);
    LAPPEND_BOOL(interp, listObj, "One-shot", flags & EVP_MD_FLAG_ONESHOT);
    LAPPEND_BOOL(interp, listObj, "XOF", flags & EVP_MD_FLAG_XOF);
    LAPPEND_BOOL(interp, listObj, "DigestAlgorithmId_NULL", flags & EVP_MD_FLAG_DIGALGID_NULL);
    LAPPEND_BOOL(interp, listObj, "DigestAlgorithmId_Abscent", flags & EVP_MD_FLAG_DIGALGID_ABSENT);
    LAPPEND_BOOL(interp, listObj, "DigestAlgorithmId_Custom", flags & EVP_MD_FLAG_DIGALGID_CUSTOM);
    LAPPEND_BOOL(interp, listObj, "FIPS", flags & EVP_MD_FLAG_FIPS);
    LAPPEND_OBJ(interp, resultObj, "flags", listObj);

    Tcl_SetObjResult(interp, resultObj);

done:
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
    EVP_MD_free(md);
#endif
    return TCL_OK;
    return res;
}

/*
 *-------------------------------------------------------------------
 *
 * DigestList --
 *
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 *-------------------------------------------------------------------
 */
int MacInfo(Tcl_Interp *interp, Tcl_Obj *nameObj) {
    Tcl_Obj *resultObj;
    int res = TCL_OK;
    char *name = Tcl_GetString(nameObj);

#if OPENSSL_VERSION_NUMBER < 0x30000000L
    if (strcmp(name, "cmac") != 0 && strcmp(name, "hmac") != 0) {
	Tcl_AppendResult(interp, "Invalid MAC \"", name, "\"", (char *) NULL);
	return TCL_ERROR;
    }
#else
    EVP_MAC *mac = EVP_MAC_fetch(NULL, name, NULL);

    if (mac == NULL) {
	Tcl_AppendResult(interp, "Invalid MAC \"", name, "\"", (char *) NULL);
	return TCL_ERROR;
    }
#endif

    /* Get properties */
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
	res = TCL_ERROR;
	goto done;
    }
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    LAPPEND_STR(interp, resultObj, "name", name, -1);
    LAPPEND_STR(interp, resultObj, "description", "", -1);
    LAPPEND_STR(interp, resultObj, "provider", "", -1);
#else
    LAPPEND_STR(interp, resultObj, "name", EVP_MAC_get0_name(mac), -1);
    LAPPEND_STR(interp, resultObj, "description", EVP_MAC_get0_description(mac), -1);
    LAPPEND_STR(interp, resultObj, "provider", OSSL_PROVIDER_get0_name(EVP_MAC_get0_provider(mac)), -1);
#endif

    Tcl_SetObjResult(interp, resultObj);

done:
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
    EVP_MAC_free(mac);
#endif
    return res;
}

/*
 *-------------------------------------------------------------------
 *
 * MacList --
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	Tcl_AppendResult(interp, "Invalid public key method \"", name, "\"", (char *) NULL);
	return TCL_ERROR;
    }

    /* Get properties */
    resultObj = Tcl_NewListObj(0, NULL);
    if (resultObj == NULL) {
	return TCL_ERROR;
	res = TCL_ERROR;
	goto done;
    }
    LAPPEND_STR(interp, resultObj, "name", OBJ_nid2ln(EVP_PKEY_id(pkey)), -1);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    LAPPEND_STR(interp, resultObj, "description", "", -1);
#else
    LAPPEND_STR(interp, resultObj, "description", EVP_PKEY_get0_description(pkey), -1);
#endif
    LAPPEND_INT(interp, resultObj, "size", EVP_PKEY_size(pkey));
    LAPPEND_INT(interp, resultObj, "bits", EVP_PKEY_bits(pkey));
    LAPPEND_INT(interp, resultObj, "security_bits", EVP_PKEY_security_bits(pkey));
    LAPPEND_STR(interp, resultObj, "baseId", OBJ_nid2ln(EVP_PKEY_base_id(pkey)), -1);
    LAPPEND_STR(interp, resultObj, "type", OBJ_nid2ln(EVP_PKEY_type(EVP_PKEY_id(pkey))), -1);
#if OPENSSL_VERSION_NUMBER < 0x30000000L
    LAPPEND_STR(interp, resultObj, "provider", "", -1);
#else
    LAPPEND_STR(interp, resultObj, "provider", OSSL_PROVIDER_get0_name(EVP_PKEY_get0_provider(pkey)), -1);
    LAPPEND_STR(interp, resultObj, "type", OBJ_nid2ln(EVP_PKEY_type(EVP_PKEY_id(pkey))), -1);
    LAPPEND_STR(interp, resultObj, "type_name", EVP_PKEY_get0_type_name(pkey), -1);
    LAPPEND_BOOL(interp, resultObj, "can_sign", EVP_PKEY_can_sign(pkey));
#endif

    {
	int pnid;
	if (EVP_PKEY_get_default_digest_nid(pkey, &pnid) > 0) {
	    LAPPEND_STR(interp, resultObj, "default_digest", OBJ_nid2ln(pnid), -2);
	}
    }

    Tcl_SetObjResult(interp, resultObj);

done:
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
    EVP_PKEY_free(pkey);
#endif
    return res;
}

/*
 *-------------------------------------------------------------------
 *
 * PkeyList --
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