Hi,
I have made the modifications you suggested and run the sample code for
RSA_public_decrypt. I get the same error that I receive with RSA_verify-
"error:0306E06C:bignum routines:BN_mod_inverse:no inverse".
Do you have any further suggestions? I do not understand what I am doing
wrong.
Thank
Hi thanks for the sample code you provided.
I have tested the sample code and it runs without error however I am still
using the default char N[], char E[] and msg[] values in the file.
I am unclear what steps I need to take to convert the Modulus and Exponent
strings from my XML into a format su
Hi, thanks again for your help.
I am now consistently getting an error "0306E06C:bignum
routines:BN_mod_inverse:no inverse" when calling RSA_verify.
I am still taking the following steps:
1) Extracting the 'SignedInfo' node and creating a 20 byte SHA1 hash of the
value of it and its contents
I am still having a problem running RSA_verify which returns 'Data too large
for modulus' errors. If I check the big number value of the 'signatureValue'
and 'Modulus' they are 268628280 and 268628488 respectively which obviously
explains the error I am receiving. I have changed my code from using
I have modified this and am passing the Base64 decoding length to Bn_bin2bn
but I still get "data too large for modulus" errors. The modulus is 128
bytes, the exponent 3 bytes and the signature value 128 bytes. The message
digest is 20 bytes.
Is there anything else I can check?
Thanks
Chris
_
Thank you for your response.
I am Base64 decoding the signatureValue, modulus and exponent but if I check
the exponent length it is zero after decoding. The modulus length seems to
vary after decoding maybe because there is a null in the buffer. I think
that my Base64 decoding code is working ok
preparing my modulus correctly before
passing it to RSA_verify or indeed extracting the SignatureValue properly.
For example should I be Base64 decoding any of these values first?
Any further help anyone can offer would really be appreciated.
Many Thanks
Chris Brown
Hi all,
I have a .Net webservice sending a Digital Signature within the soap
response which I am attempting to verify using the Crypto library
'RSA_verify' function on an embedded MontaVista system. I am assuming that
this is possible to do.
I have extracted the 'SignedInfo' element from the xm
I didn't get any replies to this when I sent it last week. Am I on the
wrong list for this sort of query?
Chris...
=== original message ===
I've manage to diagnose this down further to a snippet of code inside
ERR_STATE *ERR_get_state(void)
on roughly line 1022 of crypot/err/err.c of the 0.9.7-f
I've manage to diagnose this down further to a snippet of code inside
ERR_STATE *ERR_get_state(void)
on roughly line 1022 of crypot/err/err.c of the 0.9.7-f-snapshot
(from the 11th):
if (ERRFN(thread_get_item)(ret) != ret)
{
cmb_ssl_dbg( "crypto thread_get_item failed" );
ERR_STATE_free(ret); /* co
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