jwks中的“e”：“AQAB”是什么意思？

Question

"e"："AQAB"在JWKS中是什么意思-Json Web Key Set

{
  "keys": [
    {
      "kty": "RSA", #key type
      "e": "AQAB",  #Question - what does "e" mean or stand for. And what values can e take. What is AQAB here. 
      "use": "sig", #verify client assertion signature. This means what is the use of the key. Answer - to verify signature. Right?
      "kid": "somebase64encodestring", #key id
      "alg": "RS256",  #key algoritham. Here it is RSA.
      "n": "anotherbase64encodestring"  #This is the actual public key base64 encoded.
    }
  ]
}

Answer 1

这也是公钥的一部分。从https://datatracker.ietf.org/doc/html/rfc7518#section-6.3.1.2

6.3.1.2. “e”（指数）参数

“e”（指数）参数包含RSA公钥的指数值。它表示为Base64urlUInt编码的值。

例如，当表示值65537时，要进行base64url编码的八位字节序列必须由三个八位字节组成[1，0，1]；该值的结果表示为“AQAB”。