38     TLS1_PRF_PKEY_CTX *kctx;  in pkey_tls1_prf_init()  local
40     if ((kctx = OPENSSL_zalloc(sizeof(*kctx))) == NULL) {  in pkey_tls1_prf_init()
44     ctx->data = kctx;  in pkey_tls1_prf_init()
51     TLS1_PRF_PKEY_CTX *kctx = ctx->data;  in pkey_tls1_prf_cleanup()  local
52     OPENSSL_clear_free(kctx->sec, kctx->seclen);  in pkey_tls1_prf_cleanup()
53     OPENSSL_cleanse(kctx->seed, kctx->seedlen);  in pkey_tls1_prf_cleanup()
54     OPENSSL_free(kctx);  in pkey_tls1_prf_cleanup()
59     TLS1_PRF_PKEY_CTX *kctx = ctx->data;  in pkey_tls1_prf_ctrl()  local
62         kctx->md = p2;  in pkey_tls1_prf_ctrl()
68         if (kctx->sec != NULL)  in pkey_tls1_prf_ctrl()
69             OPENSSL_clear_free(kctx->sec, kctx->seclen);  in pkey_tls1_prf_ctrl()
70         OPENSSL_cleanse(kctx->seed, kctx->seedlen);  in pkey_tls1_prf_ctrl()
71         kctx->seedlen = 0;  in pkey_tls1_prf_ctrl()
72         kctx->sec = OPENSSL_memdup(p2, p1);  in pkey_tls1_prf_ctrl()
73         if (kctx->sec == NULL)  in pkey_tls1_prf_ctrl()
75         kctx->seclen  = p1;  in pkey_tls1_prf_ctrl()
81         if (p1 < 0 || p1 > (int)(TLS1_PRF_MAXBUF - kctx->seedlen))  in pkey_tls1_prf_ctrl()
83         memcpy(kctx->seed + kctx->seedlen, p2, p1);  in pkey_tls1_prf_ctrl()
84         kctx->seedlen += p1;  in pkey_tls1_prf_ctrl()
101         TLS1_PRF_PKEY_CTX *kctx = ctx->data;  in pkey_tls1_prf_ctrl_str()  local
108         kctx->md = md;  in pkey_tls1_prf_ctrl_str()
127     TLS1_PRF_PKEY_CTX *kctx = ctx->data;  in pkey_tls1_prf_derive()  local
128     if (kctx->md == NULL) {  in pkey_tls1_prf_derive()
132     if (kctx->sec == NULL) {  in pkey_tls1_prf_derive()
136     if (kctx->seedlen == 0) {  in pkey_tls1_prf_derive()
140     return tls1_prf_alg(kctx->md, kctx->sec, kctx->seclen,  in pkey_tls1_prf_derive()
141                         kctx->seed, kctx->seedlen,  in pkey_tls1_prf_derive()