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mbedtls_ecp_write_key_ext(): make key const

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Having a non-const `key` parameter was anotherf defect of
mbedtls_ecp_write_key(). Take this opportunity to fix it.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2024-02-28 14:18:28 +01:00
parent 04ae479b04
commit b395e74edd
2 changed files with 2 additions and 2 deletions
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2
include/mbedtls/ecp.h
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@ -1396,7 +1396,7 @@ int MBEDTLS_DEPRECATED mbedtls_ecp_write_key(mbedtls_ecp_keypair *key,
* set in \p key. * set in \p key.
* \return Another negative error code on different kinds of failure. * \return Another negative error code on different kinds of failure.
*/ */
int mbedtls_ecp_write_key_ext(mbedtls_ecp_keypair *key, int mbedtls_ecp_write_key_ext(const mbedtls_ecp_keypair *key,
size_t *olen, unsigned char *buf, size_t buflen); size_t *olen, unsigned char *buf, size_t buflen);
/** /**

2
library/ecp.c
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@ -3335,7 +3335,7 @@ cleanup:
} }
#endif /* MBEDTLS_DEPRECATED_REMOVED */ #endif /* MBEDTLS_DEPRECATED_REMOVED */
int mbedtls_ecp_write_key_ext(mbedtls_ecp_keypair *key, int mbedtls_ecp_write_key_ext(const mbedtls_ecp_keypair *key,
size_t *olen, unsigned char *buf, size_t buflen) size_t *olen, unsigned char *buf, size_t buflen)
{ {
size_t len = (key->grp.nbits + 7) / 8; size_t len = (key->grp.nbits + 7) / 8;