如何在 libgcrypt 中使用 GPG 导出的密钥？

Question

Was wondering how could I use private/public keys exported by GPG to be used by libgcrypt? Libgcrypt needs to s-expression structures with its associated mpi values and I don't know how to extract that from the GPG export:(

Thanks in advance!

Answer 1

Here are some references:

• RSA key S-expressions
• DSA key S-expressions
• ECC S-expressions
• Working with S-expressions
• S-Expressions

ASCII Armor is a GPG extension to OpenPGP and is not part of the libgcrypt library. the function dearmor_file is in GnuPG.

Answer 2

Related answer is found at: Using output from gpg --list-packets on a key to get the mpi values to generate s-expressions