mbed TLS v2.26.0
include
psa
crypto_sizes.h
Go to the documentation of this file.
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/*
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef PSA_CRYPTO_SIZES_H
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#define PSA_CRYPTO_SIZES_H
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/* Include the Mbed TLS configuration file, the way Mbed TLS does it
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* in each of its header files. */
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "
mbedtls/config.h
"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#define PSA_BITS_TO_BYTES(bits) (((bits) + 7) / 8)
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#define PSA_BYTES_TO_BITS(bytes) ((bytes) * 8)
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#define PSA_ROUND_UP_TO_MULTIPLE(block_size, length) \
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(((length) + (block_size) - 1) / (block_size) * (block_size))
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#define PSA_HASH_LENGTH(alg) \
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( \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD2 ? 16 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD4 ? 16 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD5 ? 16 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_RIPEMD160 ? 20 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_1 ? 20 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_224 ? 28 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_256 ? 32 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_384 ? 48 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512 ? 64 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_224 ? 28 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_256 ? 32 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_224 ? 28 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_256 ? 32 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_384 ? 48 : \
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PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_512 ? 64 : \
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0)
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/* Note: for HMAC-SHA-3, the block size is 144 bytes for HMAC-SHA3-226,
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* 136 bytes for HMAC-SHA3-256, 104 bytes for SHA3-384, 72 bytes for
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* HMAC-SHA3-512. */
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#if defined(MBEDTLS_SHA512_C)
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#define PSA_HASH_MAX_SIZE 64
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#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 128
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#else
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#define PSA_HASH_MAX_SIZE 32
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#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 64
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#endif
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/* All non-HMAC MACs have a maximum size that's smaller than the
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* minimum possible value of PSA_HASH_MAX_SIZE in this implementation. */
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/* Note that the encoding of truncated MAC algorithms limits this value
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* to 64 bytes.
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*/
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#define PSA_MAC_MAX_SIZE PSA_HASH_MAX_SIZE
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#define PSA_AEAD_TAG_LENGTH(alg) \
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(PSA_ALG_IS_AEAD(alg) ? \
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(((alg) & PSA_ALG_AEAD_TAG_LENGTH_MASK) >> PSA_AEAD_TAG_LENGTH_OFFSET) : \
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0)
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#define PSA_AEAD_TAG_MAX_SIZE 16
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/* The maximum size of an RSA key on this implementation, in bits.
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* This is a vendor-specific macro.
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*
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* Mbed TLS does not set a hard limit on the size of RSA keys: any key
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* whose parameters fit in a bignum is accepted. However large keys can
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* induce a large memory usage and long computation times. Unlike other
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* auxiliary macros in this file and in crypto.h, which reflect how the
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* library is configured, this macro defines how the library is
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* configured. This implementation refuses to import or generate an
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* RSA key whose size is larger than the value defined here.
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*
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* Note that an implementation may set different size limits for different
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* operations, and does not need to accept all key sizes up to the limit. */
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#define PSA_VENDOR_RSA_MAX_KEY_BITS 4096
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/* The maximum size of an ECC key on this implementation, in bits.
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* This is a vendor-specific macro. */
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#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 521
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#elif defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 512
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#elif defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 448
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#elif defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 384
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#elif defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 384
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#elif defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256
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#elif defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256
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#elif defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256
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#elif defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 255
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#elif defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 224
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#elif defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 224
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#elif defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 192
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#elif defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 192
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#else
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#define PSA_VENDOR_ECC_MAX_CURVE_BITS 0
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#endif
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#define PSA_TLS12_PSK_TO_MS_PSK_MAX_SIZE 128
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#define PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE 16
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#define PSA_MAC_LENGTH(key_type, key_bits, alg) \
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((alg) & PSA_ALG_MAC_TRUNCATION_MASK ? PSA_MAC_TRUNCATED_LENGTH(alg) : \
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PSA_ALG_IS_HMAC(alg) ? PSA_HASH_LENGTH(PSA_ALG_HMAC_GET_HASH(alg)) : \
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PSA_ALG_IS_BLOCK_CIPHER_MAC(alg) ? PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) : \
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((void)(key_type), (void)(key_bits), 0))
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#define PSA_AEAD_ENCRYPT_OUTPUT_SIZE(alg, plaintext_length) \
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(PSA_AEAD_TAG_LENGTH(alg) != 0 ? \
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(plaintext_length) + PSA_AEAD_TAG_LENGTH(alg) : \
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0)
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#define PSA_AEAD_ENCRYPT_OUTPUT_MAX_SIZE(plaintext_length) \
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((plaintext_length) + PSA_AEAD_TAG_MAX_SIZE)
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#define PSA_AEAD_DECRYPT_OUTPUT_SIZE(alg, ciphertext_length) \
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(PSA_AEAD_TAG_LENGTH(alg) != 0 ? \
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(ciphertext_length) - PSA_AEAD_TAG_LENGTH(alg) : \
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0)
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#define PSA_AEAD_DECRYPT_OUTPUT_MAX_SIZE(ciphertext_length) \
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(ciphertext_length)
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#define PSA_AEAD_NONCE_LENGTH(key_type, alg) \
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(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) == 16 && \
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(PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_CCM || \
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PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_GCM) ? 12 : \
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(key_type) == PSA_KEY_TYPE_CHACHA20 && \
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PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG(alg) == PSA_ALG_CHACHA20_POLY1305 ? 12 : \
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0)
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#define PSA_AEAD_NONCE_MAX_SIZE 12
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/* For all the AEAD modes defined in this specification, it is possible
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* to emit output without delay. However, hardware may not always be
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* capable of this. So for modes based on a block cipher, allow the
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* implementation to delay the output until it has a full block. */
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#define PSA_AEAD_UPDATE_OUTPUT_SIZE(alg, input_length) \
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(PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \
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PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, (input_length)) : \
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(input_length))
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#define PSA_AEAD_UPDATE_OUTPUT_MAX_SIZE(input_length) \
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(PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, (input_length)))
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#define PSA_AEAD_FINISH_OUTPUT_SIZE(alg) \
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(PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \
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PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE : \
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0)
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#define PSA_AEAD_FINISH_OUTPUT_MAX_SIZE (PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE)
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#define PSA_AEAD_VERIFY_OUTPUT_SIZE(alg) \
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(PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \
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PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE : \
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0)
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#define PSA_AEAD_VERIFY_OUTPUT_MAX_SIZE (PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE)
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#define PSA_RSA_MINIMUM_PADDING_SIZE(alg) \
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(PSA_ALG_IS_RSA_OAEP(alg) ? \
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2 * PSA_HASH_LENGTH(PSA_ALG_RSA_OAEP_GET_HASH(alg)) + 1 : \
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/*PKCS#1v1.5*/
)
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#define PSA_ECDSA_SIGNATURE_SIZE(curve_bits) \
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(PSA_BITS_TO_BYTES(curve_bits) * 2)
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#define PSA_SIGN_OUTPUT_SIZE(key_type, key_bits, alg) \
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(PSA_KEY_TYPE_IS_RSA(key_type) ? ((void)alg, PSA_BITS_TO_BYTES(key_bits)) : \
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PSA_KEY_TYPE_IS_ECC(key_type) ? PSA_ECDSA_SIGNATURE_SIZE(key_bits) : \
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((void)alg, 0))
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#define PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE \
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PSA_ECDSA_SIGNATURE_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS)
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#define PSA_SIGNATURE_MAX_SIZE \
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(PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) > PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE ? \
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PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) : \
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PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE)
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#define PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE(key_type, key_bits, alg) \
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(PSA_KEY_TYPE_IS_RSA(key_type) ? \
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((void)alg, PSA_BITS_TO_BYTES(key_bits)) : \
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0)
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/* This macro assumes that RSA is the only supported asymmetric encryption. */
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#define PSA_ASYMMETRIC_ENCRYPT_OUTPUT_MAX_SIZE \
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(PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS))
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#define PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE(key_type, key_bits, alg) \
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(PSA_KEY_TYPE_IS_RSA(key_type) ? \
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PSA_BITS_TO_BYTES(key_bits) - PSA_RSA_MINIMUM_PADDING_SIZE(alg) : \
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0)
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#define PSA_ASYMMETRIC_DECRYPT_OUTPUT_MAX_SIZE \
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(PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS))
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/* Maximum size of the ASN.1 encoding of an INTEGER with the specified
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* number of bits.
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*
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* This definition assumes that bits <= 2^19 - 9 so that the length field
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* is at most 3 bytes. The length of the encoding is the length of the
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* bit string padded to a whole number of bytes plus:
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* - 1 type byte;
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* - 1 to 3 length bytes;
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* - 0 to 1 bytes of leading 0 due to the sign bit.
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*/
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#define PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(bits) \
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((bits) / 8 + 5)
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/* Maximum size of the export encoding of an RSA public key.
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* Assumes that the public exponent is less than 2^32.
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*
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* RSAPublicKey ::= SEQUENCE {
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* modulus INTEGER, -- n
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* publicExponent INTEGER } -- e
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*
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* - 4 bytes of SEQUENCE overhead;
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* - n : INTEGER;
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* - 7 bytes for the public exponent.
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*/
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#define PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) \
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(PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) + 11)
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/* Maximum size of the export encoding of an RSA key pair.
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* Assumes thatthe public exponent is less than 2^32 and that the size
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* difference between the two primes is at most 1 bit.
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*
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* RSAPrivateKey ::= SEQUENCE {
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* version Version, -- 0
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* modulus INTEGER, -- N-bit
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* publicExponent INTEGER, -- 32-bit
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* privateExponent INTEGER, -- N-bit
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* prime1 INTEGER, -- N/2-bit
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* prime2 INTEGER, -- N/2-bit
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* exponent1 INTEGER, -- N/2-bit
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* exponent2 INTEGER, -- N/2-bit
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* coefficient INTEGER, -- N/2-bit
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* }
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*
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* - 4 bytes of SEQUENCE overhead;
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* - 3 bytes of version;
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* - 7 half-size INTEGERs plus 2 full-size INTEGERs,
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* overapproximated as 9 half-size INTEGERS;
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* - 7 bytes for the public exponent.
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*/
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#define PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(key_bits) \
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(9 * PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE((key_bits) / 2 + 1) + 14)
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/* Maximum size of the export encoding of a DSA public key.
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*
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* SubjectPublicKeyInfo ::= SEQUENCE {
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* algorithm AlgorithmIdentifier,
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* subjectPublicKey BIT STRING } -- contains DSAPublicKey
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* AlgorithmIdentifier ::= SEQUENCE {
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* algorithm OBJECT IDENTIFIER,
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* parameters Dss-Parms } -- SEQUENCE of 3 INTEGERs
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* DSAPublicKey ::= INTEGER -- public key, Y
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*
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* - 3 * 4 bytes of SEQUENCE overhead;
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* - 1 + 1 + 7 bytes of algorithm (DSA OID);
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* - 4 bytes of BIT STRING overhead;
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* - 3 full-size INTEGERs (p, g, y);
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* - 1 + 1 + 32 bytes for 1 sub-size INTEGER (q <= 256 bits).
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*/
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#define PSA_KEY_EXPORT_DSA_PUBLIC_KEY_MAX_SIZE(key_bits) \
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(PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) * 3 + 59)
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/* Maximum size of the export encoding of a DSA key pair.
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*
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* DSAPrivateKey ::= SEQUENCE {
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* version Version, -- 0
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* prime INTEGER, -- p
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* subprime INTEGER, -- q
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* generator INTEGER, -- g
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* public INTEGER, -- y
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* private INTEGER, -- x
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* }
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*
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* - 4 bytes of SEQUENCE overhead;
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* - 3 bytes of version;
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* - 3 full-size INTEGERs (p, g, y);
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* - 2 * (1 + 1 + 32) bytes for 2 sub-size INTEGERs (q, x <= 256 bits).
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*/
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#define PSA_KEY_EXPORT_DSA_KEY_PAIR_MAX_SIZE(key_bits) \
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(PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) * 3 + 75)
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/* Maximum size of the export encoding of an ECC public key.
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*
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* The representation of an ECC public key is:
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* - The byte 0x04;
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* - `x_P` as a `ceiling(m/8)`-byte string, big-endian;
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* - `y_P` as a `ceiling(m/8)`-byte string, big-endian;
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* - where m is the bit size associated with the curve.
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*
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* - 1 byte + 2 * point size.
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*/
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#define PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) \
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(2 * PSA_BITS_TO_BYTES(key_bits) + 1)
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/* Maximum size of the export encoding of an ECC key pair.
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*
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* An ECC key pair is represented by the secret value.
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*/
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#define PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(key_bits) \
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(PSA_BITS_TO_BYTES(key_bits))
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#define PSA_EXPORT_KEY_OUTPUT_SIZE(key_type, key_bits) \
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(PSA_KEY_TYPE_IS_UNSTRUCTURED(key_type) ? PSA_BITS_TO_BYTES(key_bits) : \
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(key_type) == PSA_KEY_TYPE_RSA_KEY_PAIR ? PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(key_bits) : \
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(key_type) == PSA_KEY_TYPE_RSA_PUBLIC_KEY ? PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \
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(key_type) == PSA_KEY_TYPE_DSA_KEY_PAIR ? PSA_KEY_EXPORT_DSA_KEY_PAIR_MAX_SIZE(key_bits) : \
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(key_type) == PSA_KEY_TYPE_DSA_PUBLIC_KEY ? PSA_KEY_EXPORT_DSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \
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PSA_KEY_TYPE_IS_ECC_KEY_PAIR(key_type) ? PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(key_bits) : \
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PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY(key_type) ? PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) : \
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0)
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#define PSA_EXPORT_PUBLIC_KEY_OUTPUT_SIZE(key_type, key_bits) \
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(PSA_KEY_TYPE_IS_RSA(key_type) ? PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \
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PSA_KEY_TYPE_IS_ECC(key_type) ? PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) : \
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0)
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827
#define PSA_EXPORT_KEY_PAIR_MAX_SIZE \
828
(PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) > \
829
PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) ? \
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PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) : \
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PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS))
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#define PSA_EXPORT_PUBLIC_KEY_MAX_SIZE \
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(PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) > \
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PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS) ? \
845
PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS) : \
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PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS))
847
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/* FFDH is not yet supported in PSA. */
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#define PSA_RAW_KEY_AGREEMENT_OUTPUT_SIZE(key_type, key_bits) \
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(PSA_KEY_TYPE_IS_ECC_KEY_PAIR(key_type) ? \
874
PSA_BITS_TO_BYTES(key_bits) : \
875
0)
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884
#define PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE \
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(PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS))
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911
#define PSA_CIPHER_IV_LENGTH(key_type, alg) \
912
(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) > 1 && \
913
((alg) == PSA_ALG_CTR || \
914
(alg) == PSA_ALG_CFB || \
915
(alg) == PSA_ALG_OFB || \
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(alg) == PSA_ALG_XTS || \
917
(alg) == PSA_ALG_CBC_NO_PADDING || \
918
(alg) == PSA_ALG_CBC_PKCS7) ? PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) : \
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(key_type) == PSA_KEY_TYPE_CHACHA20 && \
920
(alg) == PSA_ALG_STREAM_CIPHER ? 12 : \
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0)
922
927
#define PSA_CIPHER_IV_MAX_SIZE 16
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952
#define PSA_CIPHER_ENCRYPT_OUTPUT_SIZE(key_type, alg, input_length) \
953
(alg == PSA_ALG_CBC_PKCS7 ? \
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PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type), \
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(input_length) + 1) + \
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PSA_CIPHER_IV_LENGTH((key_type), (alg)) : \
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(PSA_ALG_IS_CIPHER(alg) ? \
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(input_length) + PSA_CIPHER_IV_LENGTH((key_type), (alg)) : \
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0))
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972
#define PSA_CIPHER_ENCRYPT_OUTPUT_MAX_SIZE(input_length) \
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(PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, \
974
(input_length) + 1) + \
975
PSA_CIPHER_IV_MAX_SIZE)
976
996
#define PSA_CIPHER_DECRYPT_OUTPUT_SIZE(key_type, alg, input_length) \
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(PSA_ALG_IS_CIPHER(alg) && \
998
((key_type) & PSA_KEY_TYPE_CATEGORY_MASK) == PSA_KEY_TYPE_CATEGORY_SYMMETRIC ? \
999
(input_length) : \
1000
0)
1001
1012
#define PSA_CIPHER_DECRYPT_OUTPUT_MAX_SIZE(input_length) \
1013
(input_length)
1014
1033
#define PSA_CIPHER_UPDATE_OUTPUT_SIZE(key_type, alg, input_length) \
1034
(PSA_ALG_IS_CIPHER(alg) ? \
1035
(((alg) == PSA_ALG_CBC_PKCS7 || \
1036
(alg) == PSA_ALG_CBC_NO_PADDING || \
1037
(alg) == PSA_ALG_ECB_NO_PADDING) ? \
1038
PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type), \
1039
input_length) : \
1040
(input_length)) : \
1041
0)
1042
1053
#define PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE(input_length) \
1054
(PSA_ROUND_UP_TO_MULTIPLE(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE, input_length))
1055
1073
#define PSA_CIPHER_FINISH_OUTPUT_SIZE(key_type, alg) \
1074
(PSA_ALG_IS_CIPHER(alg) ? \
1075
(alg == PSA_ALG_CBC_PKCS7 ? \
1076
PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type) : \
1077
0) : \
1078
0)
1079
1085
#define PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE \
1086
(PSA_BLOCK_CIPHER_BLOCK_MAX_SIZE)
1087
1088
#endif
/* PSA_CRYPTO_SIZES_H */
config.h
Configuration options (set of defines)
Generated on Thu Jun 30 2022 18:44:04 for mbed TLS v2.26.0 by
1.9.3
1.9.3