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πŸ” Π£ΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ JWT-Ρ‚ΠΎΠΊΠ΅Π½Π°ΠΌΠΈ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ Π±ΠΈΠ±Π»ΠΈΠΎΡ‚Π΅ΠΊΠΈ Auth0 Java JWT

Если Ρ‚Ρ‹ Ρ€Π°Π±ΠΎΡ‚Π°Π΅ΡˆΡŒ с Π°ΡƒΡ‚Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠ΅ΠΉ ΠΈ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡ‚ΡŒΡŽ Π² Java-прилоТСниях, Ρ‚Π΅Π±Π΅ пригодится Π±ΠΈΠ±Π»ΠΈΠΎΡ‚Π΅ΠΊΠ° ΠΎΡ‚ [Auth0](https://github.com/auth0/java-jwt) для Ρ€Π°Π±ΠΎΡ‚Ρ‹ с JWT.

πŸ“Œ Π§Ρ‚ΠΎ Ρ‚Π°ΠΊΠΎΠ΅ JWT?
JWT (JSON Web Token) β€” это стандарт, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰ΠΈΠΉ бСзопасно ΠΏΠ΅Ρ€Π΅Π΄Π°Π²Π°Ρ‚ΡŒ Π΄Π°Π½Π½Ρ‹Π΅ ΠΌΠ΅ΠΆΠ΄Ρƒ участниками ΠΊΠ°ΠΊ JSON-ΠΎΠ±ΡŠΠ΅ΠΊΡ‚Ρ‹. Он ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ΡΡ для Π°Π²Ρ‚ΠΎΡ€ΠΈΠ·Π°Ρ†ΠΈΠΈ, Π²Π΅Ρ€ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ ΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚Π΅Π»Π΅ΠΉ ΠΈ ΠΎΠ±ΠΌΠ΅Π½Π° Π΄Π°Π½Π½Ρ‹ΠΌΠΈ Π±Π΅Π· сСссий.

🧰 Auth0 Java JWT позволяСт:
- Π“Π΅Π½Π΅Ρ€ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Ρ‚ΠΎΠΊΠ΅Π½Ρ‹ с кастомными claim'Π°ΠΌΠΈ
- ΠŸΠΎΠ΄ΠΏΠΈΡΡ‹Π²Π°Ρ‚ΡŒ Ρ‚ΠΎΠΊΠ΅Π½Ρ‹ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ HMAC ΠΈΠ»ΠΈ RSA
- Π’Π°Π»ΠΈΠ΄ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΠΈ Π΄Π΅ΠΊΠΎΠ΄ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Ρ‚ΠΎΠΊΠ΅Π½Ρ‹
- ΠŸΡ€ΠΎΠ²Π΅Ρ€ΡΡ‚ΡŒ срок дСйствия (exp), Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€ΠΈΡŽ, ΡΡƒΠ±ΡŠΠ΅ΠΊΡ‚ ΠΈ ΠΏΡ€ΠΎΡ‡Π΅Π΅

πŸ§ͺ ΠŸΡ€ΠΈΠΌΠ΅Ρ€: гСнСрация Ρ‚ΠΎΠΊΠ΅Π½Π°

Algorithm algorithm = Algorithm.HMAC256("secret");
String token = JWT.create()
.withIssuer("auth0")
.withClaim("userId", 123)
.withExpiresAt(new Date(System.currentTimeMillis() + 3600_000))
.sign(algorithm);


πŸ” ΠŸΡ€ΠΎΠ²Π΅Ρ€ΠΊΠ° ΠΈ Π΄Π΅ΠΊΠΎΠ΄ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Ρ‚ΠΎΠΊΠ΅Π½Π°

JWTVerifier verifier = JWT.require(algorithm)
.withIssuer("auth0")
.build();

DecodedJWT jwt = verifier.verify(token);
System.out.println(jwt.getClaim("userId").asInt());


πŸ›‘οΈ ΠŸΡ€Π΅ΠΈΠΌΡƒΡ‰Π΅ΡΡ‚Π²Π°:
- ΠŸΡ€ΠΎΡΡ‚ΠΎΡ‚Π° API
- Π₯ΠΎΡ€ΠΎΡˆΠ°Ρ ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠΊΠ° ΠΈ докумСнтация
- БСзопасноС ΡƒΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ ΠΊΠ»ΡŽΡ‡Π°ΠΌΠΈ ΠΈ подписями

πŸ“š Π‘Ρ‚Π°Ρ‚ΡŒΡ с ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π°ΠΌΠΈ ΠΈ пояснСниями:
πŸ‘‰ https://www.blackslate.io/articles/manage-jwt-

Если Ρ‚Ρ‹ пишСшь backend Π½Π° Java ΠΈ Ρ€Π°Π±ΠΎΡ‚Π°Π΅ΡˆΡŒ с Π°Π²Ρ‚ΠΎΡ€ΠΈΠ·Π°Ρ†ΠΈΠ΅ΠΉ β€” эта Π±ΠΈΠ±Π»ΠΈΠΎΡ‚Π΅ΠΊΠ° Ρ‚ΠΎΡ‡Π½ΠΎ стоит Ρ‚Π²ΠΎΠ΅Π³ΠΎ внимания.

@javatg



tg-me.com/javatg/1861
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πŸ” Π£ΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ JWT-Ρ‚ΠΎΠΊΠ΅Π½Π°ΠΌΠΈ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ Π±ΠΈΠ±Π»ΠΈΠΎΡ‚Π΅ΠΊΠΈ Auth0 Java JWT

Если Ρ‚Ρ‹ Ρ€Π°Π±ΠΎΡ‚Π°Π΅ΡˆΡŒ с Π°ΡƒΡ‚Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠ΅ΠΉ ΠΈ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡ‚ΡŒΡŽ Π² Java-прилоТСниях, Ρ‚Π΅Π±Π΅ пригодится Π±ΠΈΠ±Π»ΠΈΠΎΡ‚Π΅ΠΊΠ° ΠΎΡ‚ [Auth0](https://github.com/auth0/java-jwt) для Ρ€Π°Π±ΠΎΡ‚Ρ‹ с JWT.

πŸ“Œ Π§Ρ‚ΠΎ Ρ‚Π°ΠΊΠΎΠ΅ JWT?
JWT (JSON Web Token) β€” это стандарт, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰ΠΈΠΉ бСзопасно ΠΏΠ΅Ρ€Π΅Π΄Π°Π²Π°Ρ‚ΡŒ Π΄Π°Π½Π½Ρ‹Π΅ ΠΌΠ΅ΠΆΠ΄Ρƒ участниками ΠΊΠ°ΠΊ JSON-ΠΎΠ±ΡŠΠ΅ΠΊΡ‚Ρ‹. Он ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ΡΡ для Π°Π²Ρ‚ΠΎΡ€ΠΈΠ·Π°Ρ†ΠΈΠΈ, Π²Π΅Ρ€ΠΈΡ„ΠΈΠΊΠ°Ρ†ΠΈΠΈ ΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚Π΅Π»Π΅ΠΉ ΠΈ ΠΎΠ±ΠΌΠ΅Π½Π° Π΄Π°Π½Π½Ρ‹ΠΌΠΈ Π±Π΅Π· сСссий.

🧰 Auth0 Java JWT позволяСт:
- Π“Π΅Π½Π΅Ρ€ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Ρ‚ΠΎΠΊΠ΅Π½Ρ‹ с кастомными claim'Π°ΠΌΠΈ
- ΠŸΠΎΠ΄ΠΏΠΈΡΡ‹Π²Π°Ρ‚ΡŒ Ρ‚ΠΎΠΊΠ΅Π½Ρ‹ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ HMAC ΠΈΠ»ΠΈ RSA
- Π’Π°Π»ΠΈΠ΄ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ ΠΈ Π΄Π΅ΠΊΠΎΠ΄ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Ρ‚ΠΎΠΊΠ΅Π½Ρ‹
- ΠŸΡ€ΠΎΠ²Π΅Ρ€ΡΡ‚ΡŒ срок дСйствия (exp), Π°ΡƒΠ΄ΠΈΡ‚ΠΎΡ€ΠΈΡŽ, ΡΡƒΠ±ΡŠΠ΅ΠΊΡ‚ ΠΈ ΠΏΡ€ΠΎΡ‡Π΅Π΅

πŸ§ͺ ΠŸΡ€ΠΈΠΌΠ΅Ρ€: гСнСрация Ρ‚ΠΎΠΊΠ΅Π½Π°


Algorithm algorithm = Algorithm.HMAC256("secret");
String token = JWT.create()
.withIssuer("auth0")
.withClaim("userId", 123)
.withExpiresAt(new Date(System.currentTimeMillis() + 3600_000))
.sign(algorithm);


πŸ” ΠŸΡ€ΠΎΠ²Π΅Ρ€ΠΊΠ° ΠΈ Π΄Π΅ΠΊΠΎΠ΄ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ Ρ‚ΠΎΠΊΠ΅Π½Π°

JWTVerifier verifier = JWT.require(algorithm)
.withIssuer("auth0")
.build();

DecodedJWT jwt = verifier.verify(token);
System.out.println(jwt.getClaim("userId").asInt());


πŸ›‘οΈ ΠŸΡ€Π΅ΠΈΠΌΡƒΡ‰Π΅ΡΡ‚Π²Π°:
- ΠŸΡ€ΠΎΡΡ‚ΠΎΡ‚Π° API
- Π₯ΠΎΡ€ΠΎΡˆΠ°Ρ ΠΏΠΎΠ΄Π΄Π΅Ρ€ΠΆΠΊΠ° ΠΈ докумСнтация
- БСзопасноС ΡƒΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ ΠΊΠ»ΡŽΡ‡Π°ΠΌΠΈ ΠΈ подписями

πŸ“š Π‘Ρ‚Π°Ρ‚ΡŒΡ с ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π°ΠΌΠΈ ΠΈ пояснСниями:
πŸ‘‰ https://www.blackslate.io/articles/manage-jwt-

Если Ρ‚Ρ‹ пишСшь backend Π½Π° Java ΠΈ Ρ€Π°Π±ΠΎΡ‚Π°Π΅ΡˆΡŒ с Π°Π²Ρ‚ΠΎΡ€ΠΈΠ·Π°Ρ†ΠΈΠ΅ΠΉ β€” эта Π±ΠΈΠ±Π»ΠΈΠΎΡ‚Π΅ΠΊΠ° Ρ‚ΠΎΡ‡Π½ΠΎ стоит Ρ‚Π²ΠΎΠ΅Π³ΠΎ внимания.

@javatg

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Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. Bitcoin’s creator, Satoshi Nakamoto, originally described the need for β€œan electronic payment system based on cryptographic proof instead of trust.” Each and every Bitcoin transaction that’s ever been made exists on a public ledger accessible to everyone, making transactions hard to reverse and difficult to fake. That’s by design: Core to their decentralized nature, Bitcoins aren’t backed by the government or any issuing institution, and there’s nothing to guarantee their value besides the proof baked in the heart of the system. β€œThe reason why it’s worth money is simply because we, as people, decided it has valueβ€”same as gold,” says Anton Mozgovoy, co-founder & CEO of digital financial service company Holyheld.

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Bitcoin mining is the process of adding new transactions to the Bitcoin blockchain. It’s a tough job. People who choose to mine Bitcoin use a process called proof of work, deploying computers in a race to solve mathematical puzzles that verify transactions.To entice miners to keep racing to solve the puzzles and support the overall system, the Bitcoin code rewards miners with new Bitcoins. β€œThis is how new coins are created” and new transactions are added to the blockchain, says Okoro.

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