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implement kc_rsa_private_decrypt

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24202 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2008-12-15 04:32:30 +00:00
parent 2e8d2802c8
commit be7861f63b
1 changed files with 58 additions and 1 deletions
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59
lib/hx509/ks_keychain.c
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@@ -119,6 +119,8 @@ kc_rsa_private_encrypt(int flen,
CSSM_DATA sig, in;
int fret = 0;
if (padding != RSA_PKCS1_PADDING)
return -1;
cret = SecKeyGetCSSMKey(privKeyRef, &cssmKey);
if(cret) abort();
@@ -157,7 +159,62 @@ static int
kc_rsa_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
RSA * rsa, int padding)
{
return -1;
struct kc_rsa *kc = RSA_get_app_data(rsa);
CSSM_RETURN cret;
OSStatus ret;
const CSSM_ACCESS_CREDENTIALS *creds;
SecKeyRef privKeyRef = (SecKeyRef)kc->item;
CSSM_CSP_HANDLE cspHandle;
const CSSM_KEY *cssmKey;
CSSM_CC_HANDLE handle = 0;
CSSM_DATA out, in, rem;
int fret = 0;
CSSM_SIZE outlen = 0;
char remdata[1024];
if (padding != RSA_PKCS1_PADDING)
return -1;
cret = SecKeyGetCSSMKey(privKeyRef, &cssmKey);
if(cret) abort();
cret = SecKeyGetCSPHandle(privKeyRef, &cspHandle);
if(cret) abort();
ret = SecKeyGetCredentials(privKeyRef, CSSM_ACL_AUTHORIZATION_DECRYPT,
kSecCredentialTypeDefault, &creds);
if(ret) abort();
ret = CSSM_CSP_CreateAsymmetricContext (cspHandle,
CSSM_ALGID_RSA,
creds,
cssmKey,
CSSM_PADDING_PKCS1,
&handle);
if(ret) abort();
in.Data = (uint8 *)from;
in.Length = flen;
out.Data = (uint8 *)to;
out.Length = kc->keysize;
rem.Data = (uint8 *)remdata;
rem.Length = sizeof(remdata);
cret = CSSM_DecryptData(handle, &in, 1, &out, 1, &outlen, &rem);
if(cret) {
/* cssmErrorString(cret); */
fret = -1;
} else
fret = out.Length;
if(handle)
CSSM_DeleteContext(handle);
return fret;
}
static int