I've got a string, a signature, and a public key, and I want to verify the signature on the string. The key looks like this:
-----BEGIN PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDfG4IuFO2h/LdDNmonwGNw5srWnUEWzoBrPRF1NM8LqpOMD45FAPtZ1NmPtHGo0BAS1UsyJEGXx0NPJ8Gw1z+huLrlXnAVX5B4ec6cJfKKmpL/l94WhP2v8F3OGWrnaEX1mLMoxe124Pcfamt0SPCGkealVvXw13PLINE/YptjkQIDAQAB-----END PUBLIC KEY-----
I've been reading the pycrypto docs for a while, but I can't figure out how to make an RSAobj with this kind of key. If you know PHP, I'm trying to do the following:
openssl_verify($data, $signature, $public_key, OPENSSL_ALGO_SHA1);
Also, if I'm confused about any terminology, please let me know.
Recently, I was able to get MD5 authentication working for XMPP streams in Swift IOS following the instructions on the following two websites (I used the CC-MD5 C library for the actual hashing):
I'm interested in understanding the process and am not looking to use the ios XMPP-Framework. Any help would be appreciated.
I need a function written in Excel VBA that will hash passwords using a standard algorithm such as SHA-1. Something with a simple interface like:
Public Function CreateHash(Value As String) As String...End Function
The function needs to work on an XP workstation with Excel 2003 installed, but otherwise must use no third party components. It can reference and use DLLs that are available with XP, such as CryptoAPI.
Does anyone know of a sample to achieve this hashing functionality?
My immediate certificate on https://paper-shape.com got a weak signature algorithm SHA1: https://www.ssllabs.com/ssltest/analyze.html?d=paper-shape.com
I followed theses instructions. I created my pfx file both per OpenSSL and per certificate export wizard.
The CRT and pem (immediate certificate from startcom) seem to be ok, because the following command shows "Signature Algorithm: sha256WithRSAEncryption" on both (CRT and PEM):
$ openssl x509 -text -in paper-shape.com.crt
Either something went wrong during my pfx creation process or azure website overrules my immediate certificate.
Has anybody an idea?
What would actually happen if I had a hash collision while using git?
E.g. I manage to commit two files with the same sha1 checksum,would git notice it or corrupt one of the files?
Could git be improved to live with that, or would I have to change to a new hash algorithm?
(Please do not deflect this question by discussing how unlikely that is - Thanks)