19 lines
931 B
Plaintext
19 lines
931 B
Plaintext
==== Always sign your tokens
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The foremost measure to enhance JWT security is to ensure that every JWT you
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issue is signed. Unsigned tokens are like open books that anyone can tamper
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with. Signing your JWTs ensures that any alterations to the tokens after they
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have been issued can be detected. Most JWT libraries support a signing function,
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and using it is usually as simple as providing a secret key when the token is
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created.
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==== Choose a strong cipher algorithm
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It is not enough to merely sign your tokens. You need to sign them with a strong
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cipher algorithm. Algorithms like HS256 (HMAC using SHA-256) are considered
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secure for most purposes. But for an additional layer of security, you could use
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an algorithm like RS256 (RSA Signature with SHA-256), which uses a private key
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for signing and a public key for verification. This way, even if someone gains
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access to the public key, they will not be able to forge tokens.
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