Update docs/getting_started.md

Co-Authored-By: Gilles Peskine <gilles.peskine@arm.com>
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Guy Wild 2019-09-04 09:17:23 +03:00 committed by GitHub
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@ -545,7 +545,7 @@ information about which inputs to pass when, and when you can obtain which outpu
* Usage flags set for key derivation (`PSA_KEY_USAGE_DERIVE`) * Usage flags set for key derivation (`PSA_KEY_USAGE_DERIVE`)
* Key type set to `PSA_KEY_TYPE_DERIVE`. * Key type set to `PSA_KEY_TYPE_DERIVE`.
* Algorithm set to a key derivation algorithm * Algorithm set to a key derivation algorithm
(`PSA_ALG_HKDF(PSA_ALG_SHA_256)`). (for example `PSA_ALG_HKDF(PSA_ALG_SHA_256)`).
**To derive a new AES-CTR 128-bit encryption key into a given key slot using HKDF **To derive a new AES-CTR 128-bit encryption key into a given key slot using HKDF
with a given key, salt and information:** with a given key, salt and information:**