I have a private key private.key) in format -----BEGIN RSA PRIVATE KEY-----IEpAIBAAKCAQEAvKwuhMiQR/THmjK.....-----END RSA PRIVATE KEY-----, and I am trying to convert it in the format that putty (.ppk) understands using ssh-keygen command through cygwin, but i am getting a public key instead. Do I need to save the original file (private.key) in any specific format?
I tried saving the (private.key) in .pem format and no extension. Tried ssh-keygen -t rsa -e -f private.key > privatekey2.ppk Tried ssh-keygen -t rsa -i -f privatekey2.key Tried ssh-keygen -p Expecting the key in below format:
Comment: imported-openssh-key Public-Lines: 6 AAAAB3NzaC1yc2EAAAADAQABAAABAQCiud9bCgiaSX7ck2Y1orbH3U5+4lsOmAbT Az361YM3XwX6nLNyPycFkTdYfX75IhUPCT9ywPm4WvEy9B78qL6EoKZctAM/DUZA 7DDJeeK4NWsulN4qDUyWoR50wVJCswgwMLCZPwcXeyed8WpUi2qbi8Di4KJphdtV HIAeq2pDYaj1HMBtxI2Lrd5DPSt7u28v/twrOksDpSA7DXzRu7AsIKvO/dF9/PR4 WB/cqctC9RPvDK1VWNj+xPFGZ2ylBr0aC3TilbKaou/8S2AmJyp5FOGUEBCUMGWs P/fQbN0XQX6dQuvfTtYUBf4ZuJKxhPDBKiacUg5YufXdNR3I/JIx Private-Lines: 14 AAABACLXmqgDG3lxsCypkPJ+DxX3YFXRwL58tcVbxdsd+XUTLxQMlm2pcQEDqW6U nGnartij2caH5FBhhJCs7a+asAR043oo/yLyhC7lg8K4Ct/3bCYysOkfJN2BzSQh uqvWarPq0P1XHf0chidx4AxTsLxz0DQ5nG89tXlu4eQRYHq4jdR5Pkr5wWHjYzpX/ o9C3bcgSlKqFVJMnw06eUI6c1STtQAj/Tn+1wLpTS+p3P7kO6oXXwAKU6kOnjbx5 S0u4XUY+ZKTlhrY24zbXhGPliGDyaTL8387AE1cqWAJeWenAlbIxRzy13BQ/8RNe hpmLaHhCz32d+BFc4Oav3GyxibkAAACBANA8e5hWJOGnbSIugrWrkDGuSTQp1BFi rYEaxml69w8QmsY2s5kzLXvuWPIZCUzMv1XjHJxsa8LmzwZ/tdKKfcfQILRT54Oe NHkznPj4LgwsmVw+8WyCoA8sOykZ+tIOtwpEQUzBEGCPrMR/tsg3qigvbnno9daT BdOTiYFbowQVAAAAgQDIDQ5qRRWuyu0broHDoB0JozFPUvIDZfIwfjWqVQqgjO5HG I4kIKCS5JYC2HDtgb8t7f841hKvLzitmRiswZr5koEKBOrZTxPhI6CNBtZPTgFfV ipJHukDSkZxzxlaG52bc1NxqXh8Q6XZFiURQ36JbQtWmCLQTFC2vRXOMEiuQrQAA AIEAxo+trWXMfn7W21wMCEXDTtX5ciZMPupIoUjZ/rmRxVLSI5PmJDJS549UmVWy Q8bnU9rFgc7dG/ZuB4HD+iVSpFDhkovGCE8a2DF47Bu100bOVPIH3o7KxfWFCtzh Yw/KqweHiU1iUwuC4FUIxJW8jyxv2sOmxbOgZCZ7WNm8Qvo= Private-MAC: 22f55dc7c54402157df04950dsf67d8473bb5476f 21 Answer
You cannot do this with OpenSSH's ssh-keygen; it can neither import nor export PuTTY's key format.
(Your -e and -i options don't work because they have absolutely nothing to do with PPK. The manual page actually says it'll output RFC4716 format keys, which is a very different thing.)
To make a PuTTY PPK file, you need puttygen:
$ puttygen private_key.key -O private -o private_key.ppk 11