136 	if (ctx->digest != type) {  in EVP_DigestInit_ex()
137 		if (ctx->digest && ctx->digest->ctx_size && ctx->md_data &&  in EVP_DigestInit_ex()
139 			freezero(ctx->md_data, ctx->digest->ctx_size);  in EVP_DigestInit_ex()
142 		ctx->digest = type;  in EVP_DigestInit_ex()
163 	return ctx->digest->init(ctx);  in EVP_DigestInit_ex()
192 	if ((size_t)ctx->digest->md_size > EVP_MAX_MD_SIZE) {  in EVP_DigestFinal_ex()
196 	ret = ctx->digest->final(ctx, md);  in EVP_DigestFinal_ex()
198 		*size = ctx->digest->md_size;  in EVP_DigestFinal_ex()
199 	if (ctx->digest->cleanup) {  in EVP_DigestFinal_ex()
200 		ctx->digest->cleanup(ctx);  in EVP_DigestFinal_ex()
203 	memset(ctx->md_data, 0, ctx->digest->ctx_size);  in EVP_DigestFinal_ex()
289 	if (ctx->digest && ctx->digest->cleanup &&  in EVP_MD_CTX_cleanup()
291 		ctx->digest->cleanup(ctx);  in EVP_MD_CTX_cleanup()
292 	if (ctx->digest && ctx->digest->ctx_size && ctx->md_data &&  in EVP_MD_CTX_cleanup()
294 		freezero(ctx->md_data, ctx->digest->ctx_size);  in EVP_MD_CTX_cleanup()
320 	if ((in == NULL) || (in->digest == NULL)) {  in EVP_MD_CTX_copy_ex()
325 	if (out->digest == in->digest) {  in EVP_MD_CTX_copy_ex()
341 	if (in->md_data && out->digest->ctx_size) {  in EVP_MD_CTX_copy_ex()
345 			out->md_data = calloc(1, out->digest->ctx_size);  in EVP_MD_CTX_copy_ex()
351 		memcpy(out->md_data, in->md_data, out->digest->ctx_size);  in EVP_MD_CTX_copy_ex()
364 	if (out->digest->copy)  in EVP_MD_CTX_copy_ex()
365 		return out->digest->copy(out, in);  in EVP_MD_CTX_copy_ex()
376 	if (!ctx->digest) {  in EVP_MD_CTX_ctrl()
381 	if (!ctx->digest->md_ctrl) {  in EVP_MD_CTX_ctrl()
386 	ret = ctx->digest->md_ctrl(ctx, type, arg, ptr);  in EVP_MD_CTX_ctrl()
400 	return ctx->digest;  in EVP_MD_CTX_md()