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Make input arguments to mbedtls_rsa_import_raw constant

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Original intention was to be allowed to perform in-place operations like changing the byte-order before importing
parameters into an HSM. Now a copy is needed in this case, but there's no more danger of a user expecting the arguments
to be left untouched.
This commit is contained in:
Hanno Becker 2017-10-02 10:00:37 +01:00
parent 43a08d029e
commit 7471631dde
2 changed files with 11 additions and 10 deletions
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10
include/mbedtls/rsa.h
View file

@ -364,11 +364,11 @@ int mbedtls_rsa_import( mbedtls_rsa_context *ctx,
* \return 0 if successful, non-zero error code on failure.
*/
int mbedtls_rsa_import_raw( mbedtls_rsa_context *ctx,
unsigned char *N, size_t N_len,
unsigned char *P, size_t P_len,
unsigned char *Q, size_t Q_len,
unsigned char *D, size_t D_len,
unsigned char *E, size_t E_len );
unsigned char const *N, size_t N_len,
unsigned char const *P, size_t P_len,
unsigned char const *Q, size_t Q_len,
unsigned char const *D, size_t D_len,
unsigned char const *E, size_t E_len );
/**
* \brief Attempt to complete an RSA context from

11
library/rsa.c
View file

@ -18,6 +18,7 @@
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The following sources were referenced in the design of this implementation
* of the RSA algorithm:
@ -551,11 +552,11 @@ int mbedtls_rsa_import( mbedtls_rsa_context *ctx,
}
int mbedtls_rsa_import_raw( mbedtls_rsa_context *ctx,
unsigned char *N, size_t N_len,
unsigned char *P, size_t P_len,
unsigned char *Q, size_t Q_len,
unsigned char *D, size_t D_len,
unsigned char *E, size_t E_len )
unsigned char const *N, size_t N_len,
unsigned char const *P, size_t P_len,
unsigned char const *Q, size_t Q_len,
unsigned char const *D, size_t D_len,
unsigned char const *E, size_t E_len )
{
int ret;