2  * Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
24 int o2i_SCT_signature(SCT *sct, const unsigned char **in, size_t len)  in o2i_SCT_signature()  argument
27     size_t len_remaining = len;  in o2i_SCT_signature()
30     if (sct->version != SCT_VERSION_V1) {  in o2i_SCT_signature()
32         return -1;  in o2i_SCT_signature()
35      * digitally-signed struct header: (1 byte) Hash algorithm (1 byte)  in o2i_SCT_signature()
41     if (len <= 4) {  in o2i_SCT_signature()
43         return -1;  in o2i_SCT_signature()
48     sct->hash_alg = *p++;  in o2i_SCT_signature()
49     sct->sig_alg = *p++;  in o2i_SCT_signature()
52         return -1;  in o2i_SCT_signature()
56     len_remaining -= (p - *in);  in o2i_SCT_signature()
59         return -1;  in o2i_SCT_signature()
63         return -1;  in o2i_SCT_signature()
64     len_remaining -= siglen;  in o2i_SCT_signature()
67     return len - len_remaining;  in o2i_SCT_signature()
70 SCT *o2i_SCT(SCT **psct, const unsigned char **in, size_t len)  in o2i_SCT()  argument
75     if (len == 0 || len > MAX_SCT_SIZE) {  in o2i_SCT()
85     sct->version = *p;  in o2i_SCT()
86     if (sct->version == SCT_VERSION_V1) {  in o2i_SCT()
89         /*-  in o2i_SCT()
90          * Fixed-length header:  in o2i_SCT()
92          *     Version sct_version;     (1 byte)  in o2i_SCT()
98         if (len < 43) {  in o2i_SCT()
102         len -= 43;  in o2i_SCT()
104         sct->log_id = OPENSSL_memdup(p, CT_V1_HASHLEN);  in o2i_SCT()
105         if (sct->log_id == NULL)  in o2i_SCT()
107         sct->log_id_len = CT_V1_HASHLEN;  in o2i_SCT()
110         n2l8(p, sct->timestamp);  in o2i_SCT()
113         if (len < len2) {  in o2i_SCT()
118             sct->ext = OPENSSL_memdup(p, len2);  in o2i_SCT()
119             if (sct->ext == NULL)  in o2i_SCT()
122         sct->ext_len = len2;  in o2i_SCT()
124         len -= len2;  in o2i_SCT()
126         sig_len = o2i_SCT_signature(sct, &p, len);  in o2i_SCT()
131         len -= sig_len;  in o2i_SCT()
132         *in = p + len;  in o2i_SCT()
135         sct->sct = OPENSSL_memdup(p, len);  in o2i_SCT()
136         if (sct->sct == NULL)  in o2i_SCT()
138         sct->sct_len = len;  in o2i_SCT()
139         *in = p + len;  in o2i_SCT()
155     size_t len;  in i2o_SCT_signature()  local
163     if (sct->version != SCT_VERSION_V1) {  in i2o_SCT_signature()
169     * (1 byte) Hash algorithm  in i2o_SCT_signature()
170     * (1 byte) Signature algorithm  in i2o_SCT_signature()
173     len = 4 + sct->sig_len;  in i2o_SCT_signature()
178             *out += len;  in i2o_SCT_signature()
180             pstart = p = OPENSSL_malloc(len);  in i2o_SCT_signature()
188         *p++ = sct->hash_alg;  in i2o_SCT_signature()
189         *p++ = sct->sig_alg;  in i2o_SCT_signature()
190         s2n(sct->sig_len, p);  in i2o_SCT_signature()
191         memcpy(p, sct->sig, sct->sig_len);  in i2o_SCT_signature()
194     return len;  in i2o_SCT_signature()
197     return -1;  in i2o_SCT_signature()
202     size_t len;  in i2o_SCT()  local
210      * Fixed-length header: struct { (1 byte) Version sct_version; (32 bytes)  in i2o_SCT()
212      * extensions; (1 byte) Hash algorithm (1 byte) Signature algorithm (2  in i2o_SCT()
215     if (sct->version == SCT_VERSION_V1)  in i2o_SCT()
216         len = 43 + sct->ext_len + 4 + sct->sig_len;  in i2o_SCT()
218         len = sct->sct_len;  in i2o_SCT()
221         return len;  in i2o_SCT()
225         *out += len;  in i2o_SCT()
227         pstart = p = OPENSSL_malloc(len);  in i2o_SCT()
235     if (sct->version == SCT_VERSION_V1) {  in i2o_SCT()
236         *p++ = sct->version;  in i2o_SCT()
237         memcpy(p, sct->log_id, CT_V1_HASHLEN);  in i2o_SCT()
239         l2n8(sct->timestamp, p);  in i2o_SCT()
240         s2n(sct->ext_len, p);  in i2o_SCT()
241         if (sct->ext_len > 0) {  in i2o_SCT()
242             memcpy(p, sct->ext, sct->ext_len);  in i2o_SCT()
243             p += sct->ext_len;  in i2o_SCT()
248         memcpy(p, sct->sct, len);  in i2o_SCT()
251     return len;  in i2o_SCT()
254     return -1;  in i2o_SCT()
258                             size_t len)  in STACK_OF()
263     if (len < 2 || len > MAX_SCT_LIST_SIZE) {  in STACK_OF()
269     if (list_len != len - 2) {  in STACK_OF()
295         list_len -= 2;  in STACK_OF()
301         list_len -= sct_len;  in STACK_OF()
323     int len, sct_len, i, is_pp_new = 0;  in i2o_SCT_LIST()  local
329             if ((len = i2o_SCT_LIST(a, NULL)) == -1) {  in i2o_SCT_LIST()
331                 return -1;  in i2o_SCT_LIST()
333             if ((*pp = OPENSSL_malloc(len)) == NULL) {  in i2o_SCT_LIST()
335                 return -1;  in i2o_SCT_LIST()
347             if ((sct_len = i2o_SCT(sk_SCT_value(a, i), &p)) == -1)  in i2o_SCT_LIST()
351           if ((sct_len = i2o_SCT(sk_SCT_value(a, i), NULL)) == -1)  in i2o_SCT_LIST()
362         s2n(len2 - 2, p);  in i2o_SCT_LIST()
373     return -1;  in i2o_SCT_LIST()
377                             long len)  in STACK_OF()
384     if (d2i_ASN1_OCTET_STRING(&oct, &p, len) == NULL)  in STACK_OF()
387     p = oct->data;  in STACK_OF()
388     if ((sk = o2i_SCT_LIST(a, &p, oct->length)) != NULL)  in STACK_OF()
389         *pp += len;  in STACK_OF()
398     int len;  in i2d_SCT_LIST()  local
401     if ((oct.length = i2o_SCT_LIST(a, &oct.data)) == -1)  in i2d_SCT_LIST()
402         return -1;  in i2d_SCT_LIST()
404     len = i2d_ASN1_OCTET_STRING(&oct, out);  in i2d_SCT_LIST()
406     return len;  in i2d_SCT_LIST()