Digital Signature

Your digital signature is the proof that you signed something
Your digital signature attests to the fact that your data was not tampered with
In asymmetric key system you ought to sign with the private key 🗝 or any symbol representing one

Example:

message: any expression from symbols to numerals to expressions to images to audio and video and so on.

~~🫆: symbol for digital signature~~

🗝🫆message;

🫆: Free Form language symbol for digital signature in binary operator form in this case. key🫆message computes a signature for the message given this key. Operator form 🫆should be thought of a multiplication a ⨉ b where two left and right operands are act on each other to compute a product. In a 🫆b, the key a acts on the message/data b to output a signature.

Sign

🔐["rsa"];

message = "hi";

signature = 🗝🫆message;

save as signature1;

Cloud Object Browser: signature1

Verify Signature

base = "/certs/free/signature1";

s = "base/signature/value";

key = "base/🔑";

message = "hi";

q = ( ✍🏻 s ⚲ message  ) 🫆key;

show q;

save as verify1;

Output:

"q" ⟶ True

Cloud Object Browser: verify1

FAIL: Verify Signature

base = "/certs/free/signature1";

s = "base/signature/value";

key = "base/🔑";

message = "hi!";

q = ( ✍🏻 s ⚲ message  ) 🫆key;

show q;

save as verify1-2;