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Switch from nbits to pbits

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Correct coordinate size is grp.nbits, not grp.pbits.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2023-02-10 13:02:54 +00:00
parent 6d99f0c265
commit c569fc268f
1 changed files with 2 additions and 2 deletions

4
library/psa_crypto.c

@ -3556,7 +3556,7 @@ psa_status_t mbedtls_psa_sign_hash_start(
mbedtls_ecdsa_restart_init(&operation->restart_ctx); mbedtls_ecdsa_restart_init(&operation->restart_ctx);
operation->coordinate_bytes = PSA_BITS_TO_BYTES( operation->coordinate_bytes = PSA_BITS_TO_BYTES(
operation->ctx->grp.pbits); operation->ctx->grp.nbits);
psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH(alg); psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH(alg);
operation->md_alg = mbedtls_hash_info_md_from_psa(hash_alg); operation->md_alg = mbedtls_hash_info_md_from_psa(hash_alg);
@ -3758,7 +3758,7 @@ psa_status_t mbedtls_psa_verify_hash_start(
return status; return status;
} }
coordinate_bytes = PSA_BITS_TO_BYTES(operation->ctx->grp.pbits); coordinate_bytes = PSA_BITS_TO_BYTES(operation->ctx->grp.nbits);
if (signature_length != 2 * coordinate_bytes) { if (signature_length != 2 * coordinate_bytes) {
return PSA_ERROR_INVALID_SIGNATURE; return PSA_ERROR_INVALID_SIGNATURE;