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From 63a42a9398f5ec7b2b139810ee7b5beb7ad1abc3 Mon Sep 17 00:00:00 2001
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From: Ingo Franzki <ifranzki@linux.ibm.com>
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Date: Fri, 4 Nov 2022 09:31:29 +0100
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Subject: [PATCH 07/34] EP11: Supply CKA_PUBLIC_KEY_INFO with
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CKM_IBM_BTC_DERIVE of public key
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When deriving a public EC key with the CKM_IBM_BTC_DERIVE mechanism,
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also supply the SPKI in the CKA_PUBLIC_KEY_INFO attribute.
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Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
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---
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usr/lib/ep11_stdll/ep11_specific.c | 28 ++++++++++++++++++++++++++++
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1 file changed, 28 insertions(+)
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diff --git a/usr/lib/ep11_stdll/ep11_specific.c b/usr/lib/ep11_stdll/ep11_specific.c
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index a56b5b82..886692c4 100644
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--- a/usr/lib/ep11_stdll/ep11_specific.c
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+++ b/usr/lib/ep11_stdll/ep11_specific.c
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@@ -4989,6 +4989,9 @@ CK_RV ep11tok_derive_key(STDLL_TokData_t * tokdata, SESSION * session,
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CK_MECHANISM_PTR mech_orig = mech;
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CK_ATTRIBUTE *ec_params;
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CK_IBM_BTC_DERIVE_PARAMS *btc_params = NULL;
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+ CK_BYTE *spki = NULL;
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+ CK_ULONG spki_length = 0;
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+ CK_ATTRIBUTE *spki_attr = NULL;
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memset(newblob, 0, sizeof(newblob));
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@@ -5329,6 +5332,29 @@ CK_RV ep11tok_derive_key(STDLL_TokData_t * tokdata, SESSION * session,
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__func__, rc);
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goto error;
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}
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+
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+ /* Extract the SPKI and add CKA_PUBLIC_KEY_INFO to key */
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+ rc = publ_key_get_spki(key_obj->template, ktype, FALSE,
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+ &spki, &spki_length);
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+ if (rc != CKR_OK) {
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+ TRACE_DEVEL("publ_key_get_spki failed\n");
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+ goto error;
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+ }
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+
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+ rc = build_attribute(CKA_PUBLIC_KEY_INFO, spki, spki_length, &spki_attr);
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+ if (rc != CKR_OK) {
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+ TRACE_ERROR("%s build_attribute failed with rc=0x%lx\n",
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+ __func__, rc);
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+ goto error;
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+ }
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+
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+ rc = template_update_attribute(key_obj->template, spki_attr);
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+ if (rc != CKR_OK) {
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+ TRACE_ERROR("%s template_update_attribute failed with "
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+ "rc=0x%lx\n", __func__, rc);
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+ goto error;
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+ }
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+ spki_attr = NULL;
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}
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if (class == CKO_SECRET_KEY || class == CKO_PRIVATE_KEY) {
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@@ -5381,6 +5407,8 @@ error:
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free(opaque_attr);
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if (chk_attr != NULL)
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free(chk_attr);
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+ if (spki_attr != NULL)
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+ free(spki_attr);
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if (new_attrs)
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free_attribute_array(new_attrs, new_attrs_len);
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if (new_attrs1)
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--
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2.16.2.windows.1
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