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Update based on Jaeden's comments.

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Guy Wild 2019-09-05 11:35:16 +03:00 • committed by GitHub
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@ -553,7 +553,7 @@ with a given key, salt and info:**
1. Set up the key derivation context using the `psa_key_derivation_setup()` 1. Set up the key derivation context using the `psa_key_derivation_setup()`
function, specifying the derivation algorithm `PSA_ALG_HKDF(PSA_ALG_SHA_256)`. function, specifying the derivation algorithm `PSA_ALG_HKDF(PSA_ALG_SHA_256)`.
1. Provide an optional salt with `psa_key_derivation_input_bytes()`. 1. Provide `salt` (optional) with `psa_key_derivation_input_bytes()`.
1. Provide `info` with `psa_key_derivation_input_bytes()`. 1. Provide `info` with `psa_key_derivation_input_bytes()`.
1. Provide `secret` with `psa_key_derivation_input_key()`, referencing a key that 1. Provide `secret` with `psa_key_derivation_input_key()`, referencing a key that
can be used for key derivation. can be used for key derivation.
@ -564,7 +564,7 @@ function, specifying the derivation algorithm `PSA_ALG_HKDF(PSA_ALG_SHA_256)`.
1. Clean up the key derivation context. 1. Clean up the key derivation context.
At this point, the derived key slot holds a new 128-bit AES-CTR encryption key At this point, the derived key slot holds a new 128-bit AES-CTR encryption key
derived from the key, salt and `info` provided: derived from the key, salt and info provided:
```C ```C
psa_status_t status; psa_status_t status;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT; psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;