Andrey Warkentin wrote:
Hi everybody,
I am not at all familiar with OpenSSL or DSA, but I was tinkering around
trying to get
DSA_sign/DSA_verify to work. I've stumbled upon a peculiar issue I have
not seen brought
up anywhere else, or documented. Somehow I am not able to sign messages
longer than 20 bytes.
The error message I am getting back is
error:0A070064:lib(10):func(112):reason(100). I have not been able to
find further info on this. Is there a maximum digest length?
DSA_sign/DSA_verify expect a SHA-1 message digest as input, hence
you need to hash your message before signing it. Alternative you
may use EVP_SignInit etc.
Nils
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