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Implement algorithm switching

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This commit implements every algorithm I have played with so far. It also allows for you to switch which algorithm you want to use at runtime.
This commit is contained in:
Zoe
2025-11-25 18:09:17 +00:00
parent 570531fe32
commit e16383e9b9
20 changed files with 1262 additions and 476 deletions
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76
example-app/server/api/pow/challenge.get.ts
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@@ -1,34 +1,58 @@
import { defineEventHandler } from 'h3'
import { config } from '~~/server/utils/config';
import { generate_challenge } from '@impost/lib/validator';
import { ChallengeStrategy } from '@impost/lib';
import { generate_challenge, kCTFChallengeConfig, Argon2ChallengeConfig, SHA256ChallengeConfig } from '@impost/lib/validator';
import { ChallengeStrategy, ChallengeAlgorithm } from '@impost/lib';
import { CHALLENGE_TIMEOUT_MS, outstandingChallenges } from '~~/server/utils/pow';
export default defineEventHandler(async () => {
let challenge_config;
// switch (config.strategy) {
// case ChallengeStrategy.LeadingZeroes:
// challenge_config = {
// parameters: { expires_at: CHALLENGE_TIMEOUT_MS },
// strategy: config.strategy,
// difficulty: config.leading_zeroes?.difficulty!,
// };
// break;
// case ChallengeStrategy.TargetNumber:
// challenge_config = {
// parameters: { expires_at: CHALLENGE_TIMEOUT_MS },
// strategy: config.strategy,
// max_number: config.target_number.max_number,
// };
// break;
// }
switch (config.strategy) {
case ChallengeStrategy.kCTF:
switch (config.algorithm) {
case ChallengeAlgorithm.SHA256:
switch (config.strategy) {
case ChallengeStrategy.LeadingZeroes:
challenge_config = {
algorithm: ChallengeAlgorithm.SHA256,
strategy: ChallengeStrategy.LeadingZeroes,
difficulty: config.leading_zeroes.difficulty,
parameters: { expires_at: Date.now() + CHALLENGE_TIMEOUT_MS },
} as SHA256ChallengeConfig;
break;
case ChallengeStrategy.TargetNumber:
challenge_config = {
algorithm: ChallengeAlgorithm.SHA256,
strategy: ChallengeStrategy.TargetNumber,
difficulty: config.target_number.max_number,
parameters: { expires_at: Date.now() + CHALLENGE_TIMEOUT_MS },
} as SHA256ChallengeConfig;
break;
}
break;
case ChallengeAlgorithm.Argon2id:
switch (config.strategy) {
case ChallengeStrategy.LeadingZeroes:
challenge_config = {
algorithm: ChallengeAlgorithm.Argon2id,
strategy: ChallengeStrategy.LeadingZeroes,
difficulty: config.leading_zeroes.difficulty,
parameters: { expires_at: Date.now() + CHALLENGE_TIMEOUT_MS },
} as Argon2ChallengeConfig;
break;
case ChallengeStrategy.TargetNumber:
challenge_config = {
algorithm: ChallengeAlgorithm.Argon2id,
strategy: ChallengeStrategy.TargetNumber,
difficulty: config.target_number.max_number,
parameters: { expires_at: Date.now() + CHALLENGE_TIMEOUT_MS },
} as Argon2ChallengeConfig;
break;
}
break;
case ChallengeAlgorithm.kCTF:
challenge_config = {
parameters: { expires_at: CHALLENGE_TIMEOUT_MS },
strategy: config.strategy,
algorithm: ChallengeAlgorithm.kCTF,
difficulty: config.kctf.difficulty,
};
parameters: { expires_at: Date.now() + CHALLENGE_TIMEOUT_MS },
} as kCTFChallengeConfig;
break;
}
@@ -40,10 +64,10 @@ export default defineEventHandler(async () => {
});
}
outstandingChallenges.set(challenge.challenge, {
outstandingChallenges.set(challenge.salt, {
challenge, timeout: setTimeout(() => {
console.log("Challenge timed out:", challenge.challenge);
outstandingChallenges.delete(challenge.challenge);
console.log("Challenge timed out:", challenge.salt);
outstandingChallenges.delete(challenge.salt);
}, CHALLENGE_TIMEOUT_MS)
});