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An ISO7816 compliant Java Card PKI applet.
- Posts: 4
- Joined: Thu Sep 14, 2017 10:57 pm
- Points :64
I have tested with PKI applet from github (https://github.com/JavaCardOS/Java-Card-PKI-Applet
), I run samcode to get signature, then i convert signcert.der to create signature with java code (data inputs are one)
But i got result different with PKI applet
Here is my code in java code
Code: Select all
Signature sig = Signature.getInstance("Sha1WithRSA");
byte  sign = sig.sign();
System.out.println("Sign Data Done! \n");
- Posts: 14
- Joined: Mon Sep 18, 2017 9:52 pm
- Points :180
Signature sig = Signature.getInstance("Sha1WithRSA"); where alg name 'shawithRSA" is ambitious, i 've gone through the java API spec. 'shawithRSA" only indicates that PKCS#1 is used, however, PKCS#1 is comprised of Padding (PSS, Vi5 and OAEP), cipher primitives, but they are described in details in javacard APIs .
So, you modify your applet to try these constants: Signature.ALG_RSA_SHA_PKCS1, Signature.ALG_RSA_SHA_PKCS1_PSS
until you get the same result as your java code.
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