fleet/third_party/httpsig-go/testdata/key-rsa-v15.key

Added a vendored version of httpsig-go. (#30820) For #30473 This change adds a vendored `httpsig-go` library to our repo. We cannot use the upstream library because it has not merged the change we need: https://github.com/remitly-oss/httpsig-go/pull/25 Thus, we need our own copy at this point. The instructions for keeping this library up to date (if needed) are in `UPDATE_INSTRUCTIONS`. None of the coderabbitai review comments are relevant to the code/features we are going to use for HTTP message signatures. We will use this library in subsequent PRs for the TPM-backed HTTP message signature feature. <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * New Features * Introduced a Go library for HTTP message signing and verification, supporting multiple cryptographic algorithms (RSA, ECDSA, Ed25519, HMAC). * Added utilities for key management, including JWK and PEM key handling. * Provided HTTP client and server helpers for automatic request signing and signature verification. * Implemented structured error handling and metadata extraction for signatures. * Documentation * Added comprehensive README, usage examples, and update instructions. * Included license and configuration files for third-party and testing tools. * Tests * Added extensive unit, integration, and fuzz tests covering signing, verification, and key handling. * Included official RFC test vectors and various test data files for robust validation. * Chores * Integrated continuous integration workflows and ignore files for code quality and security analysis. <!-- end of auto-generated comment: release notes by coderabbit.ai --> 2025-07-14 18:26:50 +00:00			`-----BEGIN PRIVATE KEY-----`
			`MIICdwIBADANBgkqhkiG9w0BAQEFAASCAmEwggJdAgEAAoGBAK+BnK7LFtj6kjM1`
			`bL7HtCQQpCXj1mZtCTATz4HZS9QD5eGiu7RWdSW+dd0poGmfOE3GS2fofAt3oJip`
			`mV8tNW9uB4NYTwq5fFb0MmL34BDQBQo6obCOAkx6UG0h8y91Y+Dp9lcKwN++O8mR`
			`w6bHiVyfATJm3hgSHnmgiKyL0yJFAgMBAAECgYAj2Dvw8yeabyq27L1mBZGEICX2`
			`Wx8p0jEjMZia849qINWtjLf7cAEDEXAvGFZb3Bn6wHocIb5b9TXGmDTr3GbiIWhH`
			`glwfz/aFths6xTquHcLZJ1TEGkZqRYcKvxSN3PBUYdpq40D5hPKKjerpsvN5YPk2`
			`b/P4V+jrCNr6futBoQJBAOS3NJuxur5vHRVdUJ3T1Me6Jv+Rs6mtK8DdJ02ARzvo`
			`fBntb6BYEjEoSanqdFkeGHer5YyHLXqquGWA86Ghsy0CQQDEcW9pIxNZlaNbV8yq`
			`2JaHFCalYoH8+dRbGKYqJW3izL/Kffp9jpmbTf8B7VzugHOO43lk12X+f1idxuD8`
			`Snp5AkBCkbxjMKi88tRROpbTSSuecmUVb9AOK9QXT4c3/IU/P5yXY09hKSEqY6KF`
			`LTNuGN9gPY0TiOjI0lXXXWAMBGeFAkEAiQTWQO9GP+Yv2zaSe1g3JmDX0+Ox51Ia`
			`3K+Et0EENH28CPF2Fr2wRrNQe3ekqnbOI4xmz/+uFKWeme5uX4tTgQJBAMJZY53Q`
			`kIO53yMCvxth9HY6yAXMhbDTVyW7CW6yeyscM43HtQdlNtWPYwn4XuEzxyXHJBYb`
			`l0097RDjZs8KCHw=`
			`-----END PRIVATE KEY-----`