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rsa.c: provide interface to get padding mode of RSA context

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Signed-off-by: Yanray Wang <yanray.wang@arm.com>
This commit is contained in:
Yanray Wang 2023-03-01 10:18:19 +08:00
parent 228a30d16c
commit a730df6f86
2 changed files with 18 additions and 1 deletions
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10
include/mbedtls/rsa.h
View File

@ -181,6 +181,16 @@ void mbedtls_rsa_init(mbedtls_rsa_context *ctx);
int mbedtls_rsa_set_padding(mbedtls_rsa_context *ctx, int padding,
mbedtls_md_type_t hash_id);
/**
* \brief This function retrieves padding mode of RSA modulus.
*
* \param ctx The initialized RSA context.
*
* \return RSA padding mode.
*
*/
int mbedtls_rsa_get_padding_mode(const mbedtls_rsa_context *ctx);
/**
* \brief This function imports a set of core parameters into an
* RSA context.

9
library/rsa.c
View File

@ -499,10 +499,17 @@ int mbedtls_rsa_set_padding(mbedtls_rsa_context *ctx, int padding,
return 0;
}
/*
* Get padding mode of RSA modulus
*/
int mbedtls_rsa_get_padding_mode(const mbedtls_rsa_context *ctx)
{
return ctx->MBEDTLS_PRIVATE(padding);
}
/*
* Get length in bytes of RSA modulus
*/
size_t mbedtls_rsa_get_len(const mbedtls_rsa_context *ctx)
{
return ctx->len;