Hello,
In the OpenSSL API there are functions called PEM_write_RSAPrivateKey(),
PEM_write_RSAPublicKey() and corresponding read functions:
PEM_read_RSAPrivateKey(), PEM_read_RSAPublicKey(). What I need is to
read/write RSA keys to/from a file in exactly the same format as these
functions do, but I cannot use OpenSSL (due to licensing issues when
using OpenSSL in GPL'd code). I've tried to find some GPL'd code that
can handle files in such format, but haven't succeeded.
What I've managed to find out is that it's a PKCS#1 certificate stored
in a PEM file - is that right? Unfortunately, even with such knowledge,
I haven't managed to find any specification that would be of any help.
Is there any documentation or a detailed description of the format of
the files created by the PEM_write_RSAPrivateKey() and
PEM_write_RSAPublicKey()?
As a hint, I can add that the RSA key pair is created this way:
keys = RSA_generate_key(1024, RSA_F4, NULL, NULL);
and the keys are stored to files this way:
PEM_write_RSAPrivateKey(privKeyFile, keys, NULL, NULL, 0, NULL, NULL);
PEM_write_RSAPublicKey(pubKeyFile, keys);
They are read this way:
pubKey = PEM_read_RSAPublicKey(pubKeyFile, NULL, NULL, NULL);
privKey = PEM_read_RSAPrivateKey(privKeyFile, NULL, NULL, NULL);
Tomasz Kaźmierczak
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