EVP_chacha20
LCRYPTO_ALIAS(EVP_chacha20);
const EVP_CIPHER *EVP_chacha20(void);
.cipher = EVP_chacha20,
.cipher = EVP_chacha20,
.cipher = EVP_chacha20,
.cipher = EVP_chacha20,
LCRYPTO_USED(EVP_chacha20);
if (!EVP_CipherInit(ctx->main_evp, EVP_chacha20(), key, NULL, 1))
if (!EVP_CipherInit(ctx->header_evp, EVP_chacha20(), key + 32, NULL, 1))