4 * \brief Utility functions for the use of the PSA Crypto library.
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6 * \warning This function is not part of the public API and may
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7 * change at any time.
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10 * Copyright (C) 2006-2018, ARM Limited, All Rights Reserved
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11 * SPDX-License-Identifier: Apache-2.0
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13 * Licensed under the Apache License, Version 2.0 (the "License"); you may
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14 * not use this file except in compliance with the License.
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15 * You may obtain a copy of the License at
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17 * http://www.apache.org/licenses/LICENSE-2.0
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19 * Unless required by applicable law or agreed to in writing, software
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20 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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21 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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22 * See the License for the specific language governing permissions and
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23 * limitations under the License.
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25 * This file is part of mbed TLS (https://tls.mbed.org)
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28 #ifndef MBEDTLS_PSA_UTIL_H
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29 #define MBEDTLS_PSA_UTIL_H
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31 #if !defined(MBEDTLS_CONFIG_FILE)
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34 #include MBEDTLS_CONFIG_FILE
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37 #if defined(MBEDTLS_USE_PSA_CRYPTO)
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39 #include "psa/crypto.h"
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48 /* Translations for symmetric crypto. */
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50 static inline psa_key_type_t mbedtls_psa_translate_cipher_type(
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51 mbedtls_cipher_type_t cipher )
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55 case MBEDTLS_CIPHER_AES_128_CCM:
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56 case MBEDTLS_CIPHER_AES_192_CCM:
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57 case MBEDTLS_CIPHER_AES_256_CCM:
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58 case MBEDTLS_CIPHER_AES_128_GCM:
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59 case MBEDTLS_CIPHER_AES_192_GCM:
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60 case MBEDTLS_CIPHER_AES_256_GCM:
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61 case MBEDTLS_CIPHER_AES_128_CBC:
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62 case MBEDTLS_CIPHER_AES_192_CBC:
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63 case MBEDTLS_CIPHER_AES_256_CBC:
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64 return( PSA_KEY_TYPE_AES );
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66 /* ARIA not yet supported in PSA. */
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67 /* case MBEDTLS_CIPHER_ARIA_128_CCM:
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68 case MBEDTLS_CIPHER_ARIA_192_CCM:
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69 case MBEDTLS_CIPHER_ARIA_256_CCM:
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70 case MBEDTLS_CIPHER_ARIA_128_GCM:
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71 case MBEDTLS_CIPHER_ARIA_192_GCM:
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72 case MBEDTLS_CIPHER_ARIA_256_GCM:
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73 case MBEDTLS_CIPHER_ARIA_128_CBC:
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74 case MBEDTLS_CIPHER_ARIA_192_CBC:
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75 case MBEDTLS_CIPHER_ARIA_256_CBC:
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76 return( PSA_KEY_TYPE_ARIA ); */
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83 static inline psa_algorithm_t mbedtls_psa_translate_cipher_mode(
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84 mbedtls_cipher_mode_t mode, size_t taglen )
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88 case MBEDTLS_MODE_GCM:
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89 return( PSA_ALG_AEAD_WITH_TAG_LENGTH( PSA_ALG_GCM, taglen ) );
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90 case MBEDTLS_MODE_CCM:
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91 return( PSA_ALG_AEAD_WITH_TAG_LENGTH( PSA_ALG_CCM, taglen ) );
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92 case MBEDTLS_MODE_CBC:
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94 return( PSA_ALG_CBC_NO_PADDING );
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95 /* Intentional fallthrough for taglen != 0 */
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102 static inline psa_key_usage_t mbedtls_psa_translate_cipher_operation(
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103 mbedtls_operation_t op )
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107 case MBEDTLS_ENCRYPT:
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108 return( PSA_KEY_USAGE_ENCRYPT );
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109 case MBEDTLS_DECRYPT:
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110 return( PSA_KEY_USAGE_DECRYPT );
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116 /* Translations for hashing. */
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118 static inline psa_algorithm_t mbedtls_psa_translate_md( mbedtls_md_type_t md_alg )
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122 #if defined(MBEDTLS_MD2_C)
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123 case MBEDTLS_MD_MD2:
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124 return( PSA_ALG_MD2 );
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126 #if defined(MBEDTLS_MD4_C)
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127 case MBEDTLS_MD_MD4:
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128 return( PSA_ALG_MD4 );
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130 #if defined(MBEDTLS_MD5_C)
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131 case MBEDTLS_MD_MD5:
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132 return( PSA_ALG_MD5 );
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134 #if defined(MBEDTLS_SHA1_C)
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135 case MBEDTLS_MD_SHA1:
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136 return( PSA_ALG_SHA_1 );
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138 #if defined(MBEDTLS_SHA256_C)
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139 case MBEDTLS_MD_SHA224:
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140 return( PSA_ALG_SHA_224 );
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141 case MBEDTLS_MD_SHA256:
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142 return( PSA_ALG_SHA_256 );
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144 #if defined(MBEDTLS_SHA512_C)
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145 case MBEDTLS_MD_SHA384:
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146 return( PSA_ALG_SHA_384 );
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147 case MBEDTLS_MD_SHA512:
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148 return( PSA_ALG_SHA_512 );
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150 #if defined(MBEDTLS_RIPEMD160_C)
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151 case MBEDTLS_MD_RIPEMD160:
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152 return( PSA_ALG_RIPEMD160 );
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154 case MBEDTLS_MD_NONE: /* Intentional fallthrough */
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160 /* Translations for ECC. */
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162 static inline int mbedtls_psa_get_ecc_oid_from_id(
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163 psa_ecc_curve_t curve, char const **oid, size_t *oid_len )
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167 #if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
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168 case PSA_ECC_CURVE_SECP192R1:
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169 *oid = MBEDTLS_OID_EC_GRP_SECP192R1;
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170 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP192R1 );
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172 #endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
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173 #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
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174 case PSA_ECC_CURVE_SECP224R1:
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175 *oid = MBEDTLS_OID_EC_GRP_SECP224R1;
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176 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP224R1 );
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178 #endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
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179 #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
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180 case PSA_ECC_CURVE_SECP256R1:
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181 *oid = MBEDTLS_OID_EC_GRP_SECP256R1;
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182 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP256R1 );
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184 #endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
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185 #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
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186 case PSA_ECC_CURVE_SECP384R1:
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187 *oid = MBEDTLS_OID_EC_GRP_SECP384R1;
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188 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP384R1 );
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190 #endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
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191 #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
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192 case PSA_ECC_CURVE_SECP521R1:
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193 *oid = MBEDTLS_OID_EC_GRP_SECP521R1;
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194 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP521R1 );
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196 #endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
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197 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
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198 case PSA_ECC_CURVE_SECP192K1:
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199 *oid = MBEDTLS_OID_EC_GRP_SECP192K1;
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200 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP192K1 );
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202 #endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
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203 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
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204 case PSA_ECC_CURVE_SECP224K1:
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205 *oid = MBEDTLS_OID_EC_GRP_SECP224K1;
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206 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP224K1 );
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208 #endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
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209 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
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210 case PSA_ECC_CURVE_SECP256K1:
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211 *oid = MBEDTLS_OID_EC_GRP_SECP256K1;
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212 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP256K1 );
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214 #endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
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215 #if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
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216 case PSA_ECC_CURVE_BRAINPOOL_P256R1:
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217 *oid = MBEDTLS_OID_EC_GRP_BP256R1;
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218 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_BP256R1 );
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220 #endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
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221 #if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
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222 case PSA_ECC_CURVE_BRAINPOOL_P384R1:
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223 *oid = MBEDTLS_OID_EC_GRP_BP384R1;
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224 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_BP384R1 );
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226 #endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
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227 #if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
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228 case PSA_ECC_CURVE_BRAINPOOL_P512R1:
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229 *oid = MBEDTLS_OID_EC_GRP_BP512R1;
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230 *oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_BP512R1 );
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232 #endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
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238 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH 1
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240 #if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
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241 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 192 + 7 ) / 8 ) + 1 )
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242 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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243 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 192 + 7 ) / 8 ) + 1 )
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245 #endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
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247 #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
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248 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 224 + 7 ) / 8 ) + 1 )
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249 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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250 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 224 + 7 ) / 8 ) + 1 )
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252 #endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
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254 #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
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255 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
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256 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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257 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
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259 #endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
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261 #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
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262 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 384 + 7 ) / 8 ) + 1 )
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263 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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264 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 384 + 7 ) / 8 ) + 1 )
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266 #endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
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268 #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
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269 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 521 + 7 ) / 8 ) + 1 )
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270 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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271 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 521 + 7 ) / 8 ) + 1 )
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273 #endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
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275 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
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276 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 192 + 7 ) / 8 ) + 1 )
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277 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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278 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 192 + 7 ) / 8 ) + 1 )
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280 #endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
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282 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
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283 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 224 + 7 ) / 8 ) + 1 )
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284 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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285 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 224 + 7 ) / 8 ) + 1 )
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287 #endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
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289 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
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290 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
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291 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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292 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
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294 #endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
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296 #if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
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297 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
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298 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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299 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
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301 #endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
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303 #if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
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304 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 384 + 7 ) / 8 ) + 1 )
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305 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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306 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 384 + 7 ) / 8 ) + 1 )
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308 #endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
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310 #if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
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311 #if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 512 + 7 ) / 8 ) + 1 )
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312 #undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
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313 #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 512 + 7 ) / 8 ) + 1 )
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315 #endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
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318 static inline psa_ecc_curve_t mbedtls_psa_translate_ecc_group( mbedtls_ecp_group_id grpid )
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322 #if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
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323 case MBEDTLS_ECP_DP_SECP192R1:
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324 return( PSA_ECC_CURVE_SECP192R1 );
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326 #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
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327 case MBEDTLS_ECP_DP_SECP224R1:
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328 return( PSA_ECC_CURVE_SECP224R1 );
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330 #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
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331 case MBEDTLS_ECP_DP_SECP256R1:
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332 return( PSA_ECC_CURVE_SECP256R1 );
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334 #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
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335 case MBEDTLS_ECP_DP_SECP384R1:
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336 return( PSA_ECC_CURVE_SECP384R1 );
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338 #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
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339 case MBEDTLS_ECP_DP_SECP521R1:
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340 return( PSA_ECC_CURVE_SECP521R1 );
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342 #if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
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343 case MBEDTLS_ECP_DP_BP256R1:
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344 return( PSA_ECC_CURVE_BRAINPOOL_P256R1 );
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346 #if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
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347 case MBEDTLS_ECP_DP_BP384R1:
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348 return( PSA_ECC_CURVE_BRAINPOOL_P384R1 );
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350 #if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
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351 case MBEDTLS_ECP_DP_BP512R1:
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352 return( PSA_ECC_CURVE_BRAINPOOL_P512R1 );
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354 #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
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355 case MBEDTLS_ECP_DP_CURVE25519:
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356 return( PSA_ECC_CURVE_CURVE25519 );
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358 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
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359 case MBEDTLS_ECP_DP_SECP192K1:
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360 return( PSA_ECC_CURVE_SECP192K1 );
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362 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
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363 case MBEDTLS_ECP_DP_SECP224K1:
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364 return( PSA_ECC_CURVE_SECP224K1 );
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366 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
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367 case MBEDTLS_ECP_DP_SECP256K1:
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368 return( PSA_ECC_CURVE_SECP256K1 );
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370 #if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
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371 case MBEDTLS_ECP_DP_CURVE448:
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372 return( PSA_ECC_CURVE_CURVE448 );
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380 #define MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE( curve ) \
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381 ( curve == PSA_ECC_CURVE_SECP192R1 ? 192 : \
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382 curve == PSA_ECC_CURVE_SECP224R1 ? 224 : \
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383 curve == PSA_ECC_CURVE_SECP256R1 ? 256 : \
\r
384 curve == PSA_ECC_CURVE_SECP384R1 ? 384 : \
\r
385 curve == PSA_ECC_CURVE_SECP521R1 ? 521 : \
\r
386 curve == PSA_ECC_CURVE_SECP192K1 ? 192 : \
\r
387 curve == PSA_ECC_CURVE_SECP224K1 ? 224 : \
\r
388 curve == PSA_ECC_CURVE_SECP256K1 ? 256 : \
\r
389 curve == PSA_ECC_CURVE_BRAINPOOL_P256R1 ? 256 : \
\r
390 curve == PSA_ECC_CURVE_BRAINPOOL_P384R1 ? 384 : \
\r
391 curve == PSA_ECC_CURVE_BRAINPOOL_P512R1 ? 512 : \
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394 #define MBEDTLS_PSA_ECC_KEY_BYTES_OF_CURVE( curve ) \
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395 ( ( MBEDTLS_PSA_ECC_KEY_BITS_OF_CURVE( curve ) + 7 ) / 8 )
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397 /* Translations for PK layer */
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399 static inline int mbedtls_psa_err_translate_pk( psa_status_t status )
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405 case PSA_ERROR_NOT_SUPPORTED:
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406 return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
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407 case PSA_ERROR_INSUFFICIENT_MEMORY:
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408 return( MBEDTLS_ERR_PK_ALLOC_FAILED );
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409 case PSA_ERROR_INSUFFICIENT_ENTROPY:
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410 return( MBEDTLS_ERR_ECP_RANDOM_FAILED );
\r
411 case PSA_ERROR_BAD_STATE:
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412 return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
\r
413 /* All other failures */
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414 case PSA_ERROR_COMMUNICATION_FAILURE:
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415 case PSA_ERROR_HARDWARE_FAILURE:
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416 case PSA_ERROR_TAMPERING_DETECTED:
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417 return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED );
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418 default: /* We return the same as for the 'other failures',
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419 * but list them separately nonetheless to indicate
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420 * which failure conditions we have considered. */
\r
421 return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED );
\r
425 /* Translations for ECC */
\r
427 /* This function transforms an ECC group identifier from
\r
428 * https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-8
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429 * into a PSA ECC group identifier. */
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430 static inline psa_ecc_curve_t mbedtls_psa_parse_tls_ecc_group(
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431 uint16_t tls_ecc_grp_reg_id )
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433 /* The PSA identifiers are currently aligned with those from
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434 * the TLS Supported Groups registry, so no conversion is necessary. */
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435 return( (psa_ecc_curve_t) tls_ecc_grp_reg_id );
\r
438 /* This function takes a buffer holding an EC public key
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439 * exported through psa_export_public_key(), and converts
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440 * it into an ECPoint structure to be put into a ClientKeyExchange
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441 * message in an ECDHE exchange.
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443 * Both the present and the foreseeable future format of EC public keys
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444 * used by PSA have the ECPoint structure contained in the exported key
\r
445 * as a subbuffer, and the function merely selects this subbuffer instead
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446 * of making a copy.
\r
448 static inline int mbedtls_psa_tls_psa_ec_to_ecpoint( unsigned char *src,
\r
450 unsigned char **dst,
\r
458 /* This function takes a buffer holding an ECPoint structure
\r
459 * (as contained in a TLS ServerKeyExchange message for ECDHE
\r
460 * exchanges) and converts it into a format that the PSA key
\r
461 * agreement API understands.
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463 static inline int mbedtls_psa_tls_ecpoint_to_psa_ec( psa_ecc_curve_t curve,
\r
464 unsigned char const *src,
\r
466 unsigned char *dst,
\r
472 if( srclen > dstlen )
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473 return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
\r
475 memcpy( dst, src, srclen );
\r
480 #endif /* MBEDTLS_USE_PSA_CRYPTO */
\r
482 #endif /* MBEDTLS_PSA_UTIL_H */
\r