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1$ gpg2 --export-secret-keys --no-armor 84E2C2E5 > secret.key
2$ openssl rsautl -sign -in testfile -inkey secret.key -out test.sign
3	
4gpg2 --export-secret-keys
5     --export-options export-reset-subkey-passwd,export-minimal,no-export-attributes 
6     --no-armor 84E2C2E5 | openpgp2ssh 84E2C2E5 > id_rsa
7	
8gpg2 --sign document.doc