A little EVM program that decodes and returns XOR-encoded data (fits in a tweet)

xor-decoder.huff

// compiles to the following bin-runtime: 7f2a447b3991925d0aa0728f5e78315948d6cb14530bc6ae127f114971abe35db87f452f5b4ef4b2336fc516af2a17113e27f69f612162a8c9321c7e2401c78629dd18600052596000f3
// (run with e.g. `evm --code <bin-runtime> run | cast --to-ascii`)
#define macro MAIN() = takes(0) returns(0) {
    0x2a447b3991925d0aa0728f5e78315948d6cb14530bc6ae127f114971abe35db8 // ciphertext
    0x452f5b4ef4b2336fc516af2a17113e27f69f612162a8c9321c7e2401c78629dd // key (which happens to be the keccak hash of the message)
    xor

    0x00 mstore

    // returns 0x6F6B207765206E65656420746F20676F20547572696E6720636F6D706C657465
    msize 0x00 return
}