Hi, I am trying to compute a hash string with 172 bytes. I have a openssl RSA private key stored in the postgresql db and a string with some text. I want to sign that string with the private key and the SHA1 algorithm and encode the result in the base64 format. I am writing it inside the pg database in a function that performs other stuff. String to sign: v_em_crt_conc = '2011-01-31;2011-02-01T13:33:38;100036;684.40; ' Private RSA Key: This Key was genarated in OpenSSL with this command: ~$openssl genrsa -out abc.pem 1024 and then copied the content to v_Private v_Private = 'MIICXAIBAAKBgQCfaFpbOjsz0fKygWc9zdvu1XjOSJEZJ9XwlAyayxt2A57OUjxJ GJZBwZDLWx+rYga2B04v5MigY9q/TfrSzbQZpmPf6hC/U36y7pgPce1ijosl7/on 4UejIlLAcqJgkoJVrkaRp0NuX5hcmFiR2z8b+ypHtF3t/JOHkz+gUAmc7wIDAQAB AoGBAIuNcbz356hgHpaDjvyeYfJe1FnTUaOyKitpkPda5HmWhcqeV8SuT6zVZouB BOKm+LUXBC4Nnk473N8px3IRP57rCaLwFdQCrfVMieAkdVPoLIryofo81jF4bbOo yUJ1E901lCbSW8bnPhrWz1zFVWBUHoik2aWIiETs8v7HD8RBAkEA0YKX0SngYo6J 5BX8en9kG0cpE/oXrTOP5cTXuyOK/bG2pikVXfozSIZx3rbszAtAjSH72Mi/djLo WsbEKL0KEQJBAMLHpLOssg06Hyj6XYGi8l6Yhxy2Vsv6qtwbxZ3soysuZrcmxgNm ek1wVyDsuTKRPQYcFgyi2fhaucXPKgzNNv8CQAIqDDFv8k5yVIBTrdECIeGaQZVg PwBeCP2BpAzd2CC4xj8/K2ZWIFN+eAyp7RZKg3cxw61AnaG18uqFJR+anFECQB8b yadUpp9MMBvYWMTSpIkNLU8dpCEx6MX8vYQqfijwYUFRNQDoBhKGJbRBepaj8a4f IDpmbA+pVdBM9PdUczsCQGrwaHYQw0NhUz2WIGvog8HUbkyAPLiWLpwWvwpjoAFs LcoEyU/UxuNTwGSL3o5aYCo1RFCZH0sBnhd4S0DH0JI=' The FUNCTION: encode(hmac(v_em_crt_conc, v_Private,'sha1'),'base64'); The Result: h6CpmrP1QCE/Mp3xn3utUEPtftg= This hash has 28 chars When I use OpenSSL in command line like this: ~$ echo "2011-01-31;2011-02-01T13:33:38;100036;684.40; " | openssl dgst -sha1 -sign abc.pem | openssl enc -base64 -A The Result is: nKfxnt31+kk/RnKihJ0jKufq+nZvmPjVauGo8+tqJ1Y/ah/mAu4jSS1wnzU+wRygZ4CLIV9DGSs9bxBc4r9e71C8s9B5ms6Kpggmc12kdmqVHBRO28bPWb/YLCej59gZFFkvcCudweNAT4qHvVqWsOtFCf9kE4q92UIv1JcwSDU= This hash has 172 chars Does someone know where is my problem? Is there other way to implement? or is it simply impossible?? Thanks in advance Luis -- View this message in context: http://postgresql.1045698.n5.nabble.com/Problem-with-encode-and-hmac-in-pgcrypto-tp3366420p3366420.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general