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Document crypto_ec_key_get_subject_public_key() to use compressed format

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Document in src/crypto/crypto.h that compressed point format is expected
in DER produced by crypto_ec_key_get_subject_public_key(). This is the
format needed for both SAE-PK and DPP use cases that are the current
users of this function.

Signed-off-by: Glenn Strauss <gstrauss@gluelogic.com>
This commit is contained in:
Glenn Strauss 2022-10-03 03:31:22 -04:00 • committed by Jouni Malinen
parent 6527a76566
commit 7ad757ec01
1 changed files with 2 additions and 1 deletions
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src/crypto/crypto.h
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@ -1068,7 +1068,8 @@ void crypto_ec_key_deinit(struct crypto_ec_key *key);
/**
* crypto_ec_key_get_subject_public_key - Get SubjectPublicKeyInfo ASN.1 for an EC key
* @key: EC key from crypto_ec_key_parse/set_pub/priv() or crypto_ec_key_gen()
* Returns: Buffer with DER encoding of ASN.1 SubjectPublicKeyInfo or %NULL on failure
* Returns: Buffer with DER encoding of ASN.1 SubjectPublicKeyInfo using
* compressed point format, or %NULL on failure
*/
struct wpabuf * crypto_ec_key_get_subject_public_key(struct crypto_ec_key *key);