ecc_is_pubkey_valid_full(9)

💖 ecc_is_pubkey_valid_full(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's a function page, and it's literally about checking that a public key is actually valid, full routine, no shortcuts. let's get into it 🫶

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🌸 SYNOPSIS 🌸

int ecc_is_pubkey_valid_full (const struct ecc_curve *curve , struct
ecc_point *pk );

like, it returns an int, takes a const struct ecc_curve * called curve, and a struct ecc_point * called pk. that's the whole signature, slay 💅

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🎀 ARGUMENTS 🎀

• curve — the elliptic curve domain parameters 👑 this is your curve's whole identity, its vibe, its parameters.
• pk — the public key, handed over as a point 🦋

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✨ DESCRIPTION ✨

so what does it do? it validates the public key according to SP800-56A section 5.6.2.3.3 ECC Full Public-Key Validation Routine 💯 that's the spec, bestie, and this function follows it. full validation, not the partial one (we'll get to that in SEE ALSO 👀).

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🔥 RETURN 🔥

• 0 — validation succeeded, everything's iconic, we love to see it 🌈
• -EINVAL — validation failed 😭 that key did NOT pass the vibe check.

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💜 SEE ALSO 💜

Kernel file ./include/crypto/internal/ecc.h — and honestly the whole ecc squad shows up here, no cap:

• ecc_swap_digits(9)
• ecc_digits_from_bytes(9)
• ecc_is_key_valid(9)
• ecc_gen_privkey(9)
• ecc_make_pub_key(9)
• crypto_ecdh_shared_secret(9)
• ecc_is_pubkey_valid_partial(9)
• vli_is_zero(9)
• vli_cmp(9)
• vli_sub(9)
• vli_from_be64(9)
• vli_from_le64(9)
• vli_mod_inv(9)
• vli_mod_mult_slow(9)
• vli_num_bits(9)
• ecc_alloc_point(9)
• ecc_free_point(9)
• ecc_point_is_zero(9)
• ecc_point_mult_shamir(9)

like, that's the whole group chat fr fr 🫶

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mwah, that's the page 💋 this came from ./include/crypto/internal, dated October 2026, and it's the ecc_is_pubkey_valid_full(9) page — go validate some keys, bestie, you've got this 💅✨