Crate clotho

This crate provides a library and binaries for identitying the origin of an AWS Sigv4 request. The only documented way to achieve this is by calling the STS endpoint https://docs.aws.amazon.com/STS/latest/APIReference/API_GetCallerIdentity.html . However, it turns out the AWS account ID is encoded in the AWS Access Key Id, as discovered bya short note on AWS KEY ID by Tal Be’ery. .
Instead of making an HTTP request for each authorization request, we can “extract” the AWS accound ID offline.

This is very useful for proxies and other use cases where the volume and response times of requests are critical.

Structs

• AWSCredential
  Representation of an AWS Credential used when unpacking the components of a Sigv4
• Config
  YAML container struct

Enums

• AWSCredentialError
  Errors when constructing a new AWSCredential
• ConfigError
  Errors for loading the YAML config