Thanks....Final question at the end of this message: > > You are majorly confused. It is the *encryption* that is failing, not > the > MD5. So why are you looking at the length of the input to the MD5 > function?!
Thanks for the help. Yes, I was confused. I thought (or I should say, I was hoping) that a 64-bit RSA key would operate on a 64 bit chunk of data. > Why would the length of the string that is input to the MD5 function > matter? Do you understand what MD5 is and does? Yes, I do understand the concept of MD5, better than I understand RSA at any rate. I though there might be a bug or something. But the only bug here is my understanding of RSA ;-) > > What matters is the numerical value of the data you are trying to sign. > The > first 8 bytes of an MD5 signature can vary from 0x0000000000000000 to > 0xfffffffffffffff. Presumably, your key is somewhere between those two > values (because that's what a 64-bit key is). So some values will work and > some won't, which is what you should have expected. > > A 64-bit key will be less than 2^64. An 8-byte excerpt of a checksum can > be > as large as 2^64. So some values won't work. So to clarify: If I generate a 65-bit key, will I be able to use that 65-bit key to sign any 64-bit value? Thanks very much, -Jesse ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
