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Return back to modifying input parameters in pkcs12_parse_pbe_params

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Return back to modifying input parameters in pkcs12_parse_pbe_params
to avoid change in behaviour.

Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
This commit is contained in:
Waleed Elmelegy 2023-09-12 14:05:10 +01:00
parent e1cb35b719
commit 57d09b72ef
2 changed files with 16 additions and 6 deletions
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12
library/pkcs12.c
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@ -47,7 +47,7 @@ static int pkcs12_parse_pbe_params(mbedtls_asn1_buf *params,
mbedtls_asn1_buf *salt, int *iterations)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char *p = params->p;
unsigned char **p = &params->p;
const unsigned char *end = params->p + params->len;
/*
@ -62,18 +62,18 @@ static int pkcs12_parse_pbe_params(mbedtls_asn1_buf *params,
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG);
}
if ((ret = mbedtls_asn1_get_tag(&p, end, &salt->len, MBEDTLS_ASN1_OCTET_STRING)) != 0) {
if ((ret = mbedtls_asn1_get_tag(p, end, &salt->len, MBEDTLS_ASN1_OCTET_STRING)) != 0) {
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT, ret);
}
salt->p = p;
p += salt->len;
salt->p = *p;
*p += salt->len;
if ((ret = mbedtls_asn1_get_int(&p, end, iterations)) != 0) {
if ((ret = mbedtls_asn1_get_int(p, end, iterations)) != 0) {
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT, ret);
}
if (p != end) {
if (*p != end) {
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT,
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH);
}