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Hi,

Please any one suggest, while signing with the same key I'm getting different signature each time,I don't whether it is right? Confused | :confused:

Thanks in advance Smile | :)

Why have you created a new CodeProject id just to ask the same question?

One of these days I'm going to think of a really clever signature.

I have a key pair(my own public key and private key).
I have signed my data with my private key. when i am trying to sign same data multiple times with private key, its generarting different signatures like

My Private Key :
// BIG p
FCA6 82CE 8E12 CABA 26EF CCF7 110E 526D B078 B05E DECB CD1E B4A2 08F3 AE16 17AE 01F3 5B91 A47E 6DF6 3413 C5E1 2ED0 899B CD13 2ACD 50D9 9151 BDC4 3EE7 3759 2E17.
// BIG q
962E DDCC 369C BA8E BB26 0EE6 B6A1 26D9 346E 38C5.
// BIG g
6784 71B2 7A9C F44E E91A 49C5 147D B1A9 AAF2 44F0 5A43 4D64 8693 1D2D 1427 1B9E 3503 0B71 FD73 DA17 9069 B32E 2935 630E 1C20 6235 4D0D A20A 6C41 6E50 BE79 4CA4.
// BIG x
06CE 2BF2 3F33 FDCD 3F22 1301 4F56 1152 69F6 FA4D.

In the above it uses the
// BIG x
06CE 2BF2 3F33 FDCD 3F22 1301 4F56 1152 69F6 FA4D.

parameter as private key to sign.

Sign File when i have signed for the first time :

CSS

// Signature part R:
493C F96C F7DA D6A5 75A3 BC4C 4F30 50A8 6C48 B213.
// Signature part S:
3EDB 39C8 3711 3E68 13F0 C14D 1264 D189 4B6F 014E.

Sign File when i have signed for the second time :

CSS

// Signature part R:
764E 5BC4 C7F7 B8BC 1A25 D4F3 A565 FCAE 47D9 8BC9.
// Signature part S:
29EF 30C4 6483 904D 9A6B 53A1 4550 AD5B A71C 33E5.

Thanks in advance. Smile | :)

Hey,

We found the solution. While signing same data multiple times with the same key will produce different signatures.

Smile | :)