HI all,
This could be a dummy question, but help me to learn as am a newbie into VPN technology.
Question:
Symmetric hashing algorithms are MD5 & SHA.
Symmetric encryption algorithms are DES,3DES etc..
Asymmetric encryption algorithms are RSA etc..
To create a DIgital signature: 1.Original text is run into hashing algorithm such as MD5 to get HASH value
2. Resulted HASH value is put into encryption algorithm as input to get DIGITAL signature.
When i run through a book, i noticed algorithms MD5 (symmetric algorithm) and RSA (asymmetric algorithm) are used to create DIGITAL signatures. Why symmetric & asymmetric algorithms are used and the benefits of combining both. And also i would like to know why can't we use MD5 & 3DES (both symmetric algorithms) to create digital signatures? Pls clarify
Message was edited by: gfgdfg fgfdgtr
