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GcmLimits

ic_cipher::gcm

Struct GcmLimits 

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pub struct GcmLimits;
Expand description

Invocation limits an agent must respect for a single GCM key.

From SP 800-38D §8.3 and the AES-GCM analysis behind RFC 8446.

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impl GcmLimits

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pub const MAX_PLAINTEXT_BYTES: u64

Maximum plaintext bytes in one invocation: 2^39 - 256 bits.

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pub const MAX_RANDOM_NONCE_INVOCATIONS: u64

Maximum invocations under one key with random 96-bit nonces.

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pub const RECOMMENDED_NONCE_LEN: usize = 12

Recommended nonce length in bytes; other lengths are legal but slower and lose the injectivity guarantee that makes counters safe.

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