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Diffstat (limited to 'doc/compatibility.rst')
| -rw-r--r-- | doc/compatibility.rst | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/doc/compatibility.rst b/doc/compatibility.rst index ab9e2e4..d82d1fa 100644 --- a/doc/compatibility.rst +++ b/doc/compatibility.rst @@ -27,24 +27,25 @@ Public keys: :ref:`VARBLOCK <bigfiles>` encryption: Python-RSA only, not compatible with any other known application. +.. _openssl: -Public keys from OpenSSL +Interoperability with OpenSSL -------------------------------------------------- +You can create a 512-bit RSA key in OpenSSL as follows:: + + openssl genrsa -out myprivatekey.pem 512 + To get a Python-RSA-compatible public key from OpenSSL, you need the -private key. Get the private key in PEM or DER format and run it -through the ``pyrsa-priv2pub`` command:: - - - Usage: pyrsa-priv2pub [options] - - Reads a private key and outputs the corresponding public key. Both - private and public keys use the format described in PKCS#1 v1.5 - - Options: - -h, --help show this help message and exit - --in=INFILENAME Input filename. Reads from stdin if not specified - --out=OUTFILENAME Output filename. Writes to stdout of not specified - --inform=INFORM key format of input - default PEM - --outform=OUTFORM key format of output - default PEM +private key first, then run it through the ``pyrsa-priv2pub`` +command:: + + pyrsa-priv2pub -i myprivatekey.pem -o mypublickey.pem + +Encryption and decryption is also compatible:: + + $ echo hello there > testfile.txt + $ pyrsa-encrypt -i testfile.txt -o testfile.rsa publickey.pem + $ openssl rsautl -in testfile.rsa -inkey privatekey.pem -decrypt + hello there |