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Fix OpenSSL session resumption with client certificate verification #264

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Fix OpenSSL session resumption with client certificate verification #264

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10 changes: 10 additions & 0 deletions src/crypto/openssl.c
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@ void *sni_find(void *sni, const char *hostname);
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/dh.h>
#include <openssl/rand.h>
#elif LIBUS_USE_WOLFSSL
#include <wolfssl/options.h>
#include <wolfssl/openssl/ssl.h>
Expand Down Expand Up @@ -486,6 +487,15 @@ SSL_CTX *create_ssl_context_from_options(struct us_socket_context_options_t opti
free_ssl_context(ssl_context);
return NULL;
}
#ifdef LIBUS_USE_OPENSSL
/* Bind resumed client authentication to this verification context. */
unsigned char session_context[SSL_MAX_SID_CTX_LENGTH];
if (RAND_bytes(session_context, sizeof(session_context)) != 1 ||
SSL_CTX_set_session_id_context(ssl_context, session_context, sizeof(session_context)) != 1) {
free_ssl_context(ssl_context);
return NULL;
}
#endif
SSL_CTX_set_verify(ssl_context, SSL_VERIFY_PEER, NULL);
}

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