diff --git a/include/dice/config/boringssl_ecdsa_p384/dice/config.h b/include/dice/config/boringssl_ecdsa_p384/dice/config.h
index 567560c..e5deb98 100644
--- a/include/dice/config/boringssl_ecdsa_p384/dice/config.h
+++ b/include/dice/config/boringssl_ecdsa_p384/dice/config.h
@@ -21,5 +21,6 @@
 #define DICE_PUBLIC_KEY_SIZE 96
 #define DICE_PRIVATE_KEY_SIZE 48
 #define DICE_SIGNATURE_SIZE 96
+#define DICE_PROFILE_NAME "opendice.example.p384"
 
 #endif  // DICE_CONFIG_BORINGSSL_ECDSA_P384_DICE_DICE_CONFIG_H_
diff --git a/include/dice/config/boringssl_ed25519/dice/config.h b/include/dice/config/boringssl_ed25519/dice/config.h
index 276dd3b..ce5a8be 100644
--- a/include/dice/config/boringssl_ed25519/dice/config.h
+++ b/include/dice/config/boringssl_ed25519/dice/config.h
@@ -21,5 +21,6 @@
 #define DICE_PUBLIC_KEY_SIZE 32
 #define DICE_PRIVATE_KEY_SIZE 64
 #define DICE_SIGNATURE_SIZE 64
+#define DICE_PROFILE_NAME NULL
 
 #endif  // DICE_CONFIG_BORINGSSL_ED25519_DICE_DICE_CONFIG_H_
diff --git a/include/dice/config/mbedtls_ecdsa_p256/dice/config.h b/include/dice/config/mbedtls_ecdsa_p256/dice/config.h
index 6d43fe4..107e4d5 100644
--- a/include/dice/config/mbedtls_ecdsa_p256/dice/config.h
+++ b/include/dice/config/mbedtls_ecdsa_p256/dice/config.h
@@ -19,5 +19,6 @@
 #define DICE_PUBLIC_KEY_SIZE 33
 #define DICE_PRIVATE_KEY_SIZE 32
 #define DICE_SIGNATURE_SIZE 64
+#define DICE_PROFILE_NAME "openssl.example.p256"
 
 #endif  // DICE_CONFIG_MBEDTLS_ECDSA_P256_DICE_DICE_CONFIG_H_
diff --git a/include/dice/config/standalone/dice/config.h b/include/dice/config/standalone/dice/config.h
index d5c2520..d71ec76 100644
--- a/include/dice/config/standalone/dice/config.h
+++ b/include/dice/config/standalone/dice/config.h
@@ -22,5 +22,6 @@
 #define DICE_PUBLIC_KEY_SIZE 1
 #define DICE_PRIVATE_KEY_SIZE 1
 #define DICE_SIGNATURE_SIZE 1
+#define DICE_PROFILE_NAME NULL
 
 #endif  // DICE_CONFIG_STANDALONE_DICE_CONFIG_H_
diff --git a/include/dice/known_test_values.h b/include/dice/known_test_values.h
index cb0925b..a74ed1d 100644
--- a/include/dice/known_test_values.h
+++ b/include/dice/known_test_values.h
@@ -179,7 +179,7 @@
 //             X509v3 Basic Constraints: critical
 //                 CA:TRUE
 //             1.3.6.1.4.1.11129.2.1.24: critical
-//     0:d=0  hl=3 l= 209 cons: SEQUENCE
+//     0:d=0  hl=3 l= 233 cons: SEQUENCE
 //     3:d=1  hl=2 l=  66 cons:  cont [ 0 ]
 //     5:d=2  hl=2 l=  64 prim:   OCTET STRING
 //       0000 - 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................
@@ -200,15 +200,17 @@
 //       0030 - 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 ................
 //   207:d=1  hl=2 l=   3 cons:  cont [ 6 ]
 //   209:d=2  hl=2 l=   1 prim:   ENUMERATED        :00
+//   212:d=1  hl=2 l=  22 cons:  cont [ 7 ]
+//   214:d=2  hl=2 l=  20 prim:   UTF8STRING        :openssl.example.p256
 //
 //     Signature Algorithm: ecdsa-with-SHA512
 //     Signature Value:
-//         30:44:02:20:5c:20:d4:32:af:59:4b:44:fc:49:e5:d4:5d:b6:
-//         fe:9c:ac:55:02:74:8b:66:c8:8c:f5:9a:70:8a:97:3c:bc:e0:
-//         02:20:66:83:d1:78:8c:75:44:83:90:c7:1e:d7:4c:98:1f:10:
-//         7f:14:6a:45:c0:1c:48:99:ce:6e:8f:6d:d3:dc:f3:93
-constexpr uint8_t kExpectedX509P256Cert_ZeroInput[705] = {
-    0x30, 0x82, 0x02, 0xbd, 0x30, 0x82, 0x02, 0x62, 0xa0, 0x03, 0x02, 0x01,
+//         30:46:02:21:00:a8:d1:e1:d1:7b:89:bf:a3:f1:8c:fa:43:fa:
+//         77:bf:83:ef:28:cb:54:d1:f5:29:e4:f3:05:99:e2:7a:d0:33:
+//         13:02:21:00:d7:9c:82:91:6b:a0:ca:70:48:76:03:95:1c:a4:
+//         6d:f0:44:ed:ba:02:2d:9a:e4:bf:f2:92:f6:78:ce:08:01:26
+constexpr uint8_t kExpectedX509P256Cert_ZeroInput[731] = {
+    0x30, 0x82, 0x02, 0xd7, 0x30, 0x82, 0x02, 0x7a, 0xa0, 0x03, 0x02, 0x01,
     0x02, 0x02, 0x14, 0x7c, 0x7d, 0xc0, 0xa3, 0xc1, 0xe7, 0x8d, 0x4e, 0x68,
     0xbc, 0xc1, 0xa2, 0x32, 0x9e, 0xf9, 0x1c, 0xa8, 0x12, 0x44, 0x91, 0x30,
     0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x04, 0x05,
@@ -231,7 +233,7 @@
     0x06, 0x02, 0xae, 0xc2, 0x69, 0x54, 0x1c, 0x6b, 0xe7, 0xeb, 0x40, 0x19,
     0xab, 0x55, 0xc6, 0x6b, 0xc8, 0x8b, 0xb8, 0xb4, 0x69, 0xad, 0x7e, 0xe8,
     0x58, 0x9e, 0x07, 0xd2, 0xf8, 0xbc, 0x88, 0x8e, 0xb3, 0x11, 0xc2, 0xdf,
-    0x97, 0x3b, 0x1b, 0x4a, 0xa3, 0x82, 0x01, 0x4e, 0x30, 0x82, 0x01, 0x4a,
+    0x97, 0x3b, 0x1b, 0x4a, 0xa3, 0x82, 0x01, 0x66, 0x30, 0x82, 0x01, 0x62,
     0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80,
     0x14, 0x4c, 0x51, 0x4d, 0x88, 0xdb, 0x0f, 0x81, 0xd5, 0x7b, 0xeb, 0x96,
     0x17, 0x7e, 0x3d, 0x7e, 0xa4, 0xaa, 0x58, 0x1e, 0x66, 0x30, 0x1d, 0x06,
@@ -240,9 +242,9 @@
     0xa8, 0x12, 0x44, 0x91, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01,
     0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x02, 0x04, 0x30, 0x0f, 0x06, 0x03,
     0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01,
-    0xff, 0x30, 0x81, 0xe6, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0xd6,
-    0x79, 0x02, 0x01, 0x18, 0x01, 0x01, 0xff, 0x04, 0x81, 0xd4, 0x30, 0x81,
-    0xd1, 0xa0, 0x42, 0x04, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0xff, 0x30, 0x81, 0xfe, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0xd6,
+    0x79, 0x02, 0x01, 0x18, 0x01, 0x01, 0xff, 0x04, 0x81, 0xec, 0x30, 0x81,
+    0xe9, 0xa0, 0x42, 0x04, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -259,14 +261,16 @@
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0xa6, 0x03, 0x0a, 0x01, 0x00, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86,
-    0x48, 0xce, 0x3d, 0x04, 0x03, 0x04, 0x05, 0x00, 0x03, 0x47, 0x00, 0x30,
-    0x44, 0x02, 0x20, 0x5c, 0x20, 0xd4, 0x32, 0xaf, 0x59, 0x4b, 0x44, 0xfc,
-    0x49, 0xe5, 0xd4, 0x5d, 0xb6, 0xfe, 0x9c, 0xac, 0x55, 0x02, 0x74, 0x8b,
-    0x66, 0xc8, 0x8c, 0xf5, 0x9a, 0x70, 0x8a, 0x97, 0x3c, 0xbc, 0xe0, 0x02,
-    0x20, 0x66, 0x83, 0xd1, 0x78, 0x8c, 0x75, 0x44, 0x83, 0x90, 0xc7, 0x1e,
-    0xd7, 0x4c, 0x98, 0x1f, 0x10, 0x7f, 0x14, 0x6a, 0x45, 0xc0, 0x1c, 0x48,
-    0x99, 0xce, 0x6e, 0x8f, 0x6d, 0xd3, 0xdc, 0xf3, 0x93};
+    0x00, 0xa6, 0x03, 0x0a, 0x01, 0x00, 0xa7, 0x16, 0x0c, 0x14, 0x6f, 0x70,
+    0x65, 0x6e, 0x73, 0x73, 0x6c, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c,
+    0x65, 0x2e, 0x70, 0x32, 0x35, 0x36, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86,
+    0x48, 0xce, 0x3d, 0x04, 0x03, 0x04, 0x05, 0x00, 0x03, 0x49, 0x00, 0x30,
+    0x46, 0x02, 0x21, 0x00, 0xa8, 0xd1, 0xe1, 0xd1, 0x7b, 0x89, 0xbf, 0xa3,
+    0xf1, 0x8c, 0xfa, 0x43, 0xfa, 0x77, 0xbf, 0x83, 0xef, 0x28, 0xcb, 0x54,
+    0xd1, 0xf5, 0x29, 0xe4, 0xf3, 0x05, 0x99, 0xe2, 0x7a, 0xd0, 0x33, 0x13,
+    0x02, 0x21, 0x00, 0xd7, 0x9c, 0x82, 0x91, 0x6b, 0xa0, 0xca, 0x70, 0x48,
+    0x76, 0x03, 0x95, 0x1c, 0xa4, 0x6d, 0xf0, 0x44, 0xed, 0xba, 0x02, 0x2d,
+    0x9a, 0xe4, 0xbf, 0xf2, 0x92, 0xf6, 0x78, 0xce, 0x08, 0x01, 0x26};
 
 constexpr uint8_t kExpectedX509P384Cert_ZeroInput[0] = {};
 
@@ -311,8 +315,8 @@
 
 constexpr uint8_t kExpectedCborP256Cert_ZeroInput[0] = {};
 
-constexpr uint8_t kExpectedCborP384Cert_ZeroInput[542] = {
-    0x84, 0x44, 0xa1, 0x01, 0x38, 0x22, 0xa0, 0x59, 0x01, 0xb2, 0xa8, 0x01,
+constexpr uint8_t kExpectedCborP384Cert_ZeroInput[569] = {
+    0x84, 0x44, 0xa1, 0x01, 0x38, 0x22, 0xa0, 0x59, 0x01, 0xcd, 0xa9, 0x01,
     0x78, 0x28, 0x30, 0x34, 0x63, 0x32, 0x36, 0x35, 0x66, 0x65, 0x30, 0x36,
     0x66, 0x66, 0x32, 0x33, 0x30, 0x65, 0x33, 0x39, 0x62, 0x36, 0x33, 0x32,
     0x32, 0x65, 0x65, 0x61, 0x39, 0x65, 0x30, 0x31, 0x30, 0x37, 0x31, 0x31,
@@ -349,15 +353,17 @@
     0xfc, 0xe0, 0x3c, 0xdc, 0x5d, 0x1b, 0x58, 0x16, 0x69, 0xdd, 0x44, 0x24,
     0x67, 0xbf, 0x21, 0xd7, 0x47, 0xf3, 0x13, 0xd1, 0x47, 0x6c, 0x4b, 0xd3,
     0x05, 0xb5, 0x29, 0xa0, 0xf1, 0x3a, 0x00, 0x47, 0x44, 0x58, 0x41, 0x20,
-    0x58, 0x60, 0x2b, 0xe7, 0xe6, 0xee, 0xd2, 0x40, 0xa4, 0xf6, 0x2b, 0x30,
-    0xda, 0x0d, 0x60, 0x89, 0xa4, 0x0c, 0x99, 0xa6, 0x95, 0x85, 0x77, 0xae,
-    0xe8, 0x7f, 0xcd, 0x66, 0x81, 0xca, 0xd1, 0x5c, 0x56, 0xcf, 0x62, 0x05,
-    0xa8, 0xb8, 0x66, 0x66, 0x46, 0x39, 0xc7, 0x9a, 0x7a, 0x47, 0xe4, 0x64,
-    0xee, 0x36, 0xd9, 0x40, 0x8d, 0xd4, 0x88, 0x82, 0xbf, 0x24, 0x70, 0x56,
-    0x03, 0x23, 0x6a, 0x45, 0x39, 0x38, 0xa2, 0xdd, 0x02, 0x18, 0x7e, 0x72,
-    0x89, 0xe5, 0xf9, 0x38, 0xfe, 0xef, 0x50, 0xf4, 0x31, 0xae, 0xb4, 0xbe,
-    0x33, 0xb2, 0x22, 0xd4, 0x34, 0x16, 0xa6, 0x53, 0x49, 0xe1, 0x54, 0x1a,
-    0x9d, 0x3e};
+    0x3a, 0x00, 0x47, 0x44, 0x59, 0x75, 0x6f, 0x70, 0x65, 0x6e, 0x64, 0x69,
+    0x63, 0x65, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x70,
+    0x33, 0x38, 0x34, 0x58, 0x60, 0x19, 0x40, 0xb7, 0x32, 0x81, 0xdd, 0x03,
+    0x7b, 0x0f, 0x35, 0xd2, 0x5a, 0x01, 0x85, 0x5b, 0xbc, 0xea, 0xb4, 0x0d,
+    0x83, 0xec, 0x6a, 0x33, 0x6d, 0x2d, 0xa0, 0x7d, 0xa6, 0x2e, 0xe8, 0x64,
+    0xdc, 0x51, 0x71, 0xa0, 0x76, 0x3e, 0x5b, 0x4e, 0xee, 0x4a, 0xa1, 0x1a,
+    0xd2, 0xd4, 0xaf, 0x38, 0x86, 0xa7, 0xd8, 0x62, 0xce, 0x55, 0xdc, 0x14,
+    0x8c, 0x08, 0xda, 0xcb, 0x0a, 0x82, 0x1f, 0x89, 0x6e, 0x75, 0x08, 0xa1,
+    0x14, 0xe8, 0x74, 0xdf, 0xf9, 0x01, 0x6b, 0x1b, 0x69, 0xb5, 0xba, 0x6e,
+    0xec, 0x4b, 0x27, 0x04, 0xcf, 0xff, 0x5f, 0x07, 0xbe, 0x60, 0xf2, 0x8d,
+    0x07, 0x4a, 0xe6, 0xa1, 0xa3};
 
 constexpr uint8_t kExpectedCdiAttest_HashOnlyInput[32] = {
     0x08, 0x4e, 0xf4, 0x06, 0xc6, 0x9b, 0xa7, 0x4b, 0x1e, 0x24, 0xd0,
@@ -515,7 +521,7 @@
 //             X509v3 Basic Constraints: critical
 //                 CA:TRUE
 //             1.3.6.1.4.1.11129.2.1.24: critical
-//     0:d=0  hl=3 l= 209 cons: SEQUENCE
+//     0:d=0  hl=3 l= 233 cons: SEQUENCE
 //     3:d=1  hl=2 l=  66 cons:  cont [ 0 ]
 //     5:d=2  hl=2 l=  64 prim:   OCTET STRING
 //       0000 - b7 d4 0c cb 22 5b a5 78-8f 98 ff 9e 86 93 75 f6 ...."[.x......u.
@@ -536,15 +542,17 @@
 //       0030 - 94 4f be 1b 21 f9 cc 23-73 41 b6 b9 b6 98 d0 bc .O..!..#sA......
 //   207:d=1  hl=2 l=   3 cons:  cont [ 6 ]
 //   209:d=2  hl=2 l=   1 prim:   ENUMERATED        :00
+//   212:d=1  hl=2 l=  22 cons:  cont [ 7 ]
+//   214:d=2  hl=2 l=  20 prim:   UTF8STRING        :openssl.example.p256
 //
 //     Signature Algorithm: ecdsa-with-SHA512
 //     Signature Value:
-//         30:46:02:21:00:d0:ff:60:84:d4:74:47:eb:f4:29:86:c5:2a:
-//         12:01:f9:7e:5b:ab:fd:fe:d3:11:75:bc:26:63:71:57:2b:b1:
-//         c8:02:21:00:e0:16:72:65:b0:4a:92:ca:c6:c9:e2:0f:50:f0:
-//         1c:70:01:64:a7:8d:7d:51:e9:59:fe:e6:7f:31:28:30:04:04
-constexpr uint8_t kExpectedX509P256Cert_HashOnlyInput[707] = {
-    0x30, 0x82, 0x02, 0xbf, 0x30, 0x82, 0x02, 0x62, 0xa0, 0x03, 0x02, 0x01,
+//         30:44:02:20:2a:d1:3e:6f:ee:42:e2:d0:64:b8:1c:bd:de:fe:
+//         49:2f:2e:4f:80:3c:66:52:05:95:2a:d9:87:7a:6d:47:44:bf:
+//         02:20:6e:1c:5a:a0:62:00:17:61:f9:c3:93:17:72:1a:ce:28:
+//         3d:c7:7d:35:22:de:b3:d6:3d:b2:6e:75:c9:f0:c1:73
+constexpr uint8_t kExpectedX509P256Cert_HashOnlyInput[729] = {
+    0x30, 0x82, 0x02, 0xd5, 0x30, 0x82, 0x02, 0x7a, 0xa0, 0x03, 0x02, 0x01,
     0x02, 0x02, 0x14, 0x68, 0x49, 0x58, 0xd9, 0xae, 0xa7, 0x2e, 0xbf, 0x7c,
     0x06, 0xaf, 0x20, 0x03, 0xb6, 0x44, 0x47, 0x82, 0x4a, 0x62, 0x71, 0x30,
     0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x04, 0x05,
@@ -567,7 +575,7 @@
     0xfb, 0x6d, 0x57, 0x18, 0xfc, 0x8f, 0x6f, 0x0b, 0x09, 0x1a, 0x19, 0xea,
     0x10, 0x7e, 0xa9, 0x38, 0xf4, 0x45, 0x33, 0xc1, 0x66, 0x5b, 0xbc, 0xfc,
     0x0a, 0x6e, 0x98, 0x99, 0x72, 0x88, 0xc1, 0xad, 0x0e, 0x15, 0xc2, 0x85,
-    0x77, 0x75, 0x00, 0x0b, 0xa3, 0x82, 0x01, 0x4e, 0x30, 0x82, 0x01, 0x4a,
+    0x77, 0x75, 0x00, 0x0b, 0xa3, 0x82, 0x01, 0x66, 0x30, 0x82, 0x01, 0x62,
     0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80,
     0x14, 0x1b, 0xe5, 0x68, 0x79, 0x33, 0xdb, 0x3d, 0x9c, 0xd5, 0xfc, 0xa7,
     0x29, 0xe8, 0x1d, 0x66, 0x85, 0x46, 0x5a, 0x7b, 0xf1, 0x30, 0x1d, 0x06,
@@ -576,9 +584,9 @@
     0x82, 0x4a, 0x62, 0x71, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01,
     0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x02, 0x04, 0x30, 0x0f, 0x06, 0x03,
     0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01,
-    0xff, 0x30, 0x81, 0xe6, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0xd6,
-    0x79, 0x02, 0x01, 0x18, 0x01, 0x01, 0xff, 0x04, 0x81, 0xd4, 0x30, 0x81,
-    0xd1, 0xa0, 0x42, 0x04, 0x40, 0xb7, 0xd4, 0x0c, 0xcb, 0x22, 0x5b, 0xa5,
+    0xff, 0x30, 0x81, 0xfe, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01, 0xd6,
+    0x79, 0x02, 0x01, 0x18, 0x01, 0x01, 0xff, 0x04, 0x81, 0xec, 0x30, 0x81,
+    0xe9, 0xa0, 0x42, 0x04, 0x40, 0xb7, 0xd4, 0x0c, 0xcb, 0x22, 0x5b, 0xa5,
     0x78, 0x8f, 0x98, 0xff, 0x9e, 0x86, 0x93, 0x75, 0xf6, 0x90, 0xac, 0x50,
     0xcf, 0x9e, 0xbd, 0x0a, 0xfe, 0xb1, 0xd9, 0xc2, 0x4e, 0x52, 0x19, 0xe4,
     0xde, 0x29, 0xe5, 0x61, 0xf3, 0xf9, 0x29, 0xe8, 0x40, 0x87, 0x7a, 0xdd,
@@ -595,14 +603,16 @@
     0x6a, 0x4e, 0x36, 0xd7, 0x6a, 0x61, 0x39, 0x08, 0x21, 0xd4, 0xfe, 0x92,
     0x5f, 0x36, 0x2d, 0xeb, 0x5d, 0xbb, 0x32, 0x8b, 0xe3, 0x94, 0x4f, 0xbe,
     0x1b, 0x21, 0xf9, 0xcc, 0x23, 0x73, 0x41, 0xb6, 0xb9, 0xb6, 0x98, 0xd0,
-    0xbc, 0xa6, 0x03, 0x0a, 0x01, 0x00, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86,
-    0x48, 0xce, 0x3d, 0x04, 0x03, 0x04, 0x05, 0x00, 0x03, 0x49, 0x00, 0x30,
-    0x46, 0x02, 0x21, 0x00, 0xd0, 0xff, 0x60, 0x84, 0xd4, 0x74, 0x47, 0xeb,
-    0xf4, 0x29, 0x86, 0xc5, 0x2a, 0x12, 0x01, 0xf9, 0x7e, 0x5b, 0xab, 0xfd,
-    0xfe, 0xd3, 0x11, 0x75, 0xbc, 0x26, 0x63, 0x71, 0x57, 0x2b, 0xb1, 0xc8,
-    0x02, 0x21, 0x00, 0xe0, 0x16, 0x72, 0x65, 0xb0, 0x4a, 0x92, 0xca, 0xc6,
-    0xc9, 0xe2, 0x0f, 0x50, 0xf0, 0x1c, 0x70, 0x01, 0x64, 0xa7, 0x8d, 0x7d,
-    0x51, 0xe9, 0x59, 0xfe, 0xe6, 0x7f, 0x31, 0x28, 0x30, 0x04, 0x04};
+    0xbc, 0xa6, 0x03, 0x0a, 0x01, 0x00, 0xa7, 0x16, 0x0c, 0x14, 0x6f, 0x70,
+    0x65, 0x6e, 0x73, 0x73, 0x6c, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c,
+    0x65, 0x2e, 0x70, 0x32, 0x35, 0x36, 0x30, 0x0c, 0x06, 0x08, 0x2a, 0x86,
+    0x48, 0xce, 0x3d, 0x04, 0x03, 0x04, 0x05, 0x00, 0x03, 0x47, 0x00, 0x30,
+    0x44, 0x02, 0x20, 0x2a, 0xd1, 0x3e, 0x6f, 0xee, 0x42, 0xe2, 0xd0, 0x64,
+    0xb8, 0x1c, 0xbd, 0xde, 0xfe, 0x49, 0x2f, 0x2e, 0x4f, 0x80, 0x3c, 0x66,
+    0x52, 0x05, 0x95, 0x2a, 0xd9, 0x87, 0x7a, 0x6d, 0x47, 0x44, 0xbf, 0x02,
+    0x20, 0x6e, 0x1c, 0x5a, 0xa0, 0x62, 0x00, 0x17, 0x61, 0xf9, 0xc3, 0x93,
+    0x17, 0x72, 0x1a, 0xce, 0x28, 0x3d, 0xc7, 0x7d, 0x35, 0x22, 0xde, 0xb3,
+    0xd6, 0x3d, 0xb2, 0x6e, 0x75, 0xc9, 0xf0, 0xc1, 0x73};
 
 constexpr uint8_t kExpectedX509P384Cert_HashOnlyInput[0] = {};
 
@@ -647,8 +657,8 @@
 
 constexpr uint8_t kExpectedCborP256Cert_HashOnlyInput[0] = {};
 
-constexpr uint8_t kExpectedCborP384Cert_HashOnlyInput[542] = {
-    0x84, 0x44, 0xa1, 0x01, 0x38, 0x22, 0xa0, 0x59, 0x01, 0xb2, 0xa8, 0x01,
+constexpr uint8_t kExpectedCborP384Cert_HashOnlyInput[569] = {
+    0x84, 0x44, 0xa1, 0x01, 0x38, 0x22, 0xa0, 0x59, 0x01, 0xcd, 0xa9, 0x01,
     0x78, 0x28, 0x35, 0x64, 0x38, 0x62, 0x36, 0x62, 0x65, 0x37, 0x63, 0x65,
     0x33, 0x65, 0x64, 0x65, 0x36, 0x61, 0x32, 0x34, 0x31, 0x38, 0x30, 0x31,
     0x34, 0x35, 0x32, 0x33, 0x65, 0x36, 0x63, 0x39, 0x64, 0x63, 0x38, 0x37,
@@ -685,15 +695,17 @@
     0x5c, 0x90, 0xfb, 0x4b, 0x6d, 0x96, 0x42, 0x77, 0xe2, 0xf6, 0x58, 0x3d,
     0x37, 0xa7, 0x3d, 0x2e, 0xca, 0xd1, 0x2c, 0xa4, 0xd4, 0xa7, 0xaf, 0x25,
     0xc3, 0xb2, 0xe7, 0x34, 0xf5, 0x3a, 0x00, 0x47, 0x44, 0x58, 0x41, 0x20,
-    0x58, 0x60, 0xd3, 0xbc, 0x6f, 0x53, 0x2c, 0x6a, 0x35, 0x3b, 0x2d, 0x7c,
-    0x4f, 0x1e, 0x1f, 0x06, 0xcf, 0x52, 0x87, 0xc2, 0xbe, 0x1c, 0x2c, 0xd1,
-    0x12, 0xd8, 0x13, 0x8e, 0xe4, 0xc8, 0x15, 0x65, 0x89, 0x97, 0xba, 0xc4,
-    0x80, 0xd2, 0xaf, 0xd2, 0xd0, 0xf8, 0x4b, 0xa1, 0xf6, 0x24, 0x5a, 0xd2,
-    0x25, 0x59, 0x7e, 0xb5, 0x6d, 0xe2, 0xae, 0x0a, 0x37, 0x4d, 0x50, 0x31,
-    0x8e, 0xc3, 0x21, 0xee, 0xf4, 0xf6, 0x7f, 0x16, 0xfd, 0xa3, 0x06, 0x27,
-    0x56, 0x0f, 0x74, 0xb7, 0xf8, 0x4c, 0xba, 0xb0, 0xc5, 0x93, 0xce, 0xe3,
-    0x24, 0x9c, 0x04, 0xdb, 0xac, 0x26, 0x14, 0xc6, 0x05, 0x04, 0xdb, 0x49,
-    0x5f, 0xe0};
+    0x3a, 0x00, 0x47, 0x44, 0x59, 0x75, 0x6f, 0x70, 0x65, 0x6e, 0x64, 0x69,
+    0x63, 0x65, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x70,
+    0x33, 0x38, 0x34, 0x58, 0x60, 0x08, 0x82, 0x40, 0x67, 0xcb, 0x0b, 0x5d,
+    0x98, 0x3b, 0x7b, 0xf0, 0x9c, 0x5f, 0x32, 0x47, 0xb4, 0x5d, 0xb9, 0x7a,
+    0xce, 0x1c, 0x55, 0x35, 0xc2, 0x18, 0x2d, 0xcb, 0x4b, 0xc1, 0xa7, 0xd2,
+    0xfa, 0x1e, 0x17, 0xa9, 0x61, 0xd5, 0x2a, 0x9f, 0x8c, 0x8e, 0x72, 0xc7,
+    0x60, 0x2e, 0x11, 0x59, 0x3a, 0xe9, 0x7d, 0x90, 0x00, 0x03, 0x67, 0xb7,
+    0x17, 0xc1, 0x95, 0x07, 0x04, 0xec, 0x81, 0x11, 0x21, 0x19, 0x4b, 0x22,
+    0x35, 0xbe, 0x93, 0xc8, 0xb8, 0x78, 0xb5, 0x16, 0xb9, 0x6e, 0x7b, 0xf6,
+    0x50, 0xe8, 0xf4, 0x81, 0xc2, 0xf4, 0x1c, 0x4b, 0xe2, 0x8d, 0x9d, 0x80,
+    0xcb, 0x34, 0x15, 0xc5, 0x63};
 
 constexpr uint8_t kExpectedCdiAttest_DescriptorInput[32] = {
     0x20, 0xd5, 0x0c, 0x68, 0x5a, 0xd9, 0xe2, 0xdf, 0x77, 0x60, 0x78,
@@ -890,7 +902,7 @@
 //             X509v3 Basic Constraints: critical
 //                 CA:TRUE
 //             1.3.6.1.4.1.11129.2.1.24: critical
-//     0:d=0  hl=4 l= 426 cons: SEQUENCE
+//     0:d=0  hl=4 l= 450 cons: SEQUENCE
 //     4:d=1  hl=2 l=  66 cons:  cont [ 0 ]
 //     6:d=2  hl=2 l=  64 prim:   OCTET STRING
 //       0000 - b7 d4 0c cb 22 5b a5 78-8f 98 ff 9e 86 93 75 f6 ...."[.x......u.
@@ -932,15 +944,17 @@
 //       0040 - a2                                                .
 //   425:d=1  hl=2 l=   3 cons:  cont [ 6 ]
 //   427:d=2  hl=2 l=   1 prim:   ENUMERATED        :00
+//   430:d=1  hl=2 l=  22 cons:  cont [ 7 ]
+//   432:d=2  hl=2 l=  20 prim:   UTF8STRING        :openssl.example.p256
 //
 //     Signature Algorithm: ecdsa-with-SHA512
 //     Signature Value:
-//         30:46:02:21:00:a9:57:7d:ac:e0:80:8e:1c:7a:e1:4d:7d:2a:
-//         52:d2:5e:fb:5a:7d:45:1e:fa:67:17:04:9e:b3:05:c2:34:f0:
-//         7a:02:21:00:b7:3a:31:25:ae:1d:2b:06:8b:ba:44:d9:3a:bf:
-//         8b:e2:3f:89:e2:a6:14:0c:fa:c2:b1:dd:0c:0a:78:ac:60:19
-constexpr uint8_t kExpectedX509P256Cert_DescriptorInput[927] = {
-    0x30, 0x82, 0x03, 0x9b, 0x30, 0x82, 0x03, 0x3e, 0xa0, 0x03, 0x02, 0x01,
+//         30:45:02:20:4f:55:9a:0c:2a:48:d5:51:fe:a1:b9:40:e7:95:
+//         97:d0:48:0a:de:71:bf:aa:19:5f:51:3d:d9:4c:df:a8:69:a8:
+//         02:21:00:d4:8c:28:58:8e:3c:4e:b6:98:76:24:2b:92:c5:8c:
+//         42:8c:88:a7:58:35:3d:b5:0e:18:a5:6f:2d:d3:0c:4c:33
+constexpr uint8_t kExpectedX509P256Cert_DescriptorInput[950] = {
+    0x30, 0x82, 0x03, 0xb2, 0x30, 0x82, 0x03, 0x56, 0xa0, 0x03, 0x02, 0x01,
     0x02, 0x02, 0x14, 0x2c, 0x0d, 0xe9, 0x55, 0xc4, 0xfa, 0x08, 0x2c, 0x2c,
     0x3a, 0x0b, 0x40, 0x66, 0x59, 0xaf, 0xa1, 0xc1, 0xc0, 0x84, 0x6c, 0x30,
     0x0c, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x04, 0x05,
@@ -963,7 +977,7 @@
     0x9b, 0x27, 0xf3, 0x87, 0x97, 0xb3, 0xe7, 0x36, 0xe6, 0x42, 0x87, 0x8c,
     0x72, 0xde, 0xf7, 0xaf, 0x2d, 0xc6, 0x23, 0x00, 0xb1, 0x2b, 0x4e, 0x1c,
     0xf3, 0xaf, 0x67, 0xf0, 0x9b, 0x88, 0x40, 0x79, 0x3b, 0x09, 0x78, 0x30,
-    0x51, 0x65, 0x38, 0x61, 0xa3, 0x82, 0x02, 0x2a, 0x30, 0x82, 0x02, 0x26,
+    0x51, 0x65, 0x38, 0x61, 0xa3, 0x82, 0x02, 0x42, 0x30, 0x82, 0x02, 0x3e,
     0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80,
     0x14, 0x1b, 0xe5, 0x68, 0x79, 0x33, 0xdb, 0x3d, 0x9c, 0xd5, 0xfc, 0xa7,
     0x29, 0xe8, 0x1d, 0x66, 0x85, 0x46, 0x5a, 0x7b, 0xf1, 0x30, 0x1d, 0x06,
@@ -972,9 +986,9 @@
     0xc1, 0xc0, 0x84, 0x6c, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01,
     0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x02, 0x04, 0x30, 0x0f, 0x06, 0x03,
     0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01,
-    0xff, 0x30, 0x82, 0x01, 0xc1, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01,
-    0xd6, 0x79, 0x02, 0x01, 0x18, 0x01, 0x01, 0xff, 0x04, 0x82, 0x01, 0xae,
-    0x30, 0x82, 0x01, 0xaa, 0xa0, 0x42, 0x04, 0x40, 0xb7, 0xd4, 0x0c, 0xcb,
+    0xff, 0x30, 0x82, 0x01, 0xd9, 0x06, 0x0a, 0x2b, 0x06, 0x01, 0x04, 0x01,
+    0xd6, 0x79, 0x02, 0x01, 0x18, 0x01, 0x01, 0xff, 0x04, 0x82, 0x01, 0xc6,
+    0x30, 0x82, 0x01, 0xc2, 0xa0, 0x42, 0x04, 0x40, 0xb7, 0xd4, 0x0c, 0xcb,
     0x22, 0x5b, 0xa5, 0x78, 0x8f, 0x98, 0xff, 0x9e, 0x86, 0x93, 0x75, 0xf6,
     0x90, 0xac, 0x50, 0xcf, 0x9e, 0xbd, 0x0a, 0xfe, 0xb1, 0xd9, 0xc2, 0x4e,
     0x52, 0x19, 0xe4, 0xde, 0x29, 0xe5, 0x61, 0xf3, 0xf9, 0x29, 0xe8, 0x40,
@@ -1009,15 +1023,17 @@
     0x11, 0x2d, 0x08, 0x4d, 0x7c, 0x39, 0x76, 0xdc, 0x73, 0xe7, 0x1c, 0x16,
     0x62, 0xd5, 0x59, 0xd7, 0x49, 0x2b, 0x6a, 0xa2, 0x36, 0x67, 0x57, 0xd1,
     0xf2, 0xf9, 0xaf, 0x13, 0xd7, 0xa3, 0xe4, 0xd3, 0x39, 0x5b, 0x02, 0x78,
-    0xb1, 0xe0, 0x09, 0x70, 0xa2, 0xa6, 0x03, 0x0a, 0x01, 0x00, 0x30, 0x0c,
+    0xb1, 0xe0, 0x09, 0x70, 0xa2, 0xa6, 0x03, 0x0a, 0x01, 0x00, 0xa7, 0x16,
+    0x0c, 0x14, 0x6f, 0x70, 0x65, 0x6e, 0x73, 0x73, 0x6c, 0x2e, 0x65, 0x78,
+    0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x70, 0x32, 0x35, 0x36, 0x30, 0x0c,
     0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x04, 0x05, 0x00,
-    0x03, 0x49, 0x00, 0x30, 0x46, 0x02, 0x21, 0x00, 0xa9, 0x57, 0x7d, 0xac,
-    0xe0, 0x80, 0x8e, 0x1c, 0x7a, 0xe1, 0x4d, 0x7d, 0x2a, 0x52, 0xd2, 0x5e,
-    0xfb, 0x5a, 0x7d, 0x45, 0x1e, 0xfa, 0x67, 0x17, 0x04, 0x9e, 0xb3, 0x05,
-    0xc2, 0x34, 0xf0, 0x7a, 0x02, 0x21, 0x00, 0xb7, 0x3a, 0x31, 0x25, 0xae,
-    0x1d, 0x2b, 0x06, 0x8b, 0xba, 0x44, 0xd9, 0x3a, 0xbf, 0x8b, 0xe2, 0x3f,
-    0x89, 0xe2, 0xa6, 0x14, 0x0c, 0xfa, 0xc2, 0xb1, 0xdd, 0x0c, 0x0a, 0x78,
-    0xac, 0x60, 0x19};
+    0x03, 0x48, 0x00, 0x30, 0x45, 0x02, 0x20, 0x4f, 0x55, 0x9a, 0x0c, 0x2a,
+    0x48, 0xd5, 0x51, 0xfe, 0xa1, 0xb9, 0x40, 0xe7, 0x95, 0x97, 0xd0, 0x48,
+    0x0a, 0xde, 0x71, 0xbf, 0xaa, 0x19, 0x5f, 0x51, 0x3d, 0xd9, 0x4c, 0xdf,
+    0xa8, 0x69, 0xa8, 0x02, 0x21, 0x00, 0xd4, 0x8c, 0x28, 0x58, 0x8e, 0x3c,
+    0x4e, 0xb6, 0x98, 0x76, 0x24, 0x2b, 0x92, 0xc5, 0x8c, 0x42, 0x8c, 0x88,
+    0xa7, 0x58, 0x35, 0x3d, 0xb5, 0x0e, 0x18, 0xa5, 0x6f, 0x2d, 0xd3, 0x0c,
+    0x4c, 0x33};
 
 constexpr uint8_t kExpectedX509P384Cert_DescriptorInput[0] = {};
 
@@ -1081,8 +1097,8 @@
 
 constexpr uint8_t kExpectedCborP256Cert_DescriptorInput[0] = {};
 
-constexpr uint8_t kExpectedCborP384Cert_DescriptorInput[768] = {
-    0x84, 0x44, 0xa1, 0x01, 0x38, 0x22, 0xa0, 0x59, 0x02, 0x94, 0xab, 0x01,
+constexpr uint8_t kExpectedCborP384Cert_DescriptorInput[795] = {
+    0x84, 0x44, 0xa1, 0x01, 0x38, 0x22, 0xa0, 0x59, 0x02, 0xaf, 0xac, 0x01,
     0x78, 0x28, 0x35, 0x64, 0x38, 0x62, 0x36, 0x62, 0x65, 0x37, 0x63, 0x65,
     0x33, 0x65, 0x64, 0x65, 0x36, 0x61, 0x32, 0x34, 0x31, 0x38, 0x30, 0x31,
     0x34, 0x35, 0x32, 0x33, 0x65, 0x36, 0x63, 0x39, 0x64, 0x63, 0x38, 0x37,
@@ -1137,15 +1153,18 @@
     0x1a, 0xc2, 0x29, 0xb5, 0x80, 0x2f, 0x7b, 0x2b, 0x0a, 0x27, 0x96, 0xb3,
     0xb2, 0xc1, 0xc6, 0x6f, 0xb4, 0x16, 0xa4, 0x78, 0x76, 0x73, 0x6f, 0xcb,
     0xf5, 0x7d, 0x26, 0xc2, 0x37, 0xe9, 0x58, 0x98, 0xeb, 0xef, 0x11, 0x7c,
-    0x8d, 0x1d, 0x4b, 0x3a, 0x00, 0x47, 0x44, 0x58, 0x41, 0x20, 0x58, 0x60,
-    0x6d, 0x1f, 0xb6, 0xd3, 0x9f, 0xfa, 0xaa, 0x73, 0xcf, 0x2d, 0x59, 0x99,
-    0x9d, 0xef, 0x0f, 0x20, 0xc4, 0xeb, 0x31, 0x99, 0xa8, 0x9c, 0xae, 0xeb,
-    0x85, 0x02, 0x34, 0x51, 0x24, 0x1a, 0x68, 0xc9, 0xfd, 0x87, 0xfd, 0x3d,
-    0xc8, 0xe4, 0x88, 0x16, 0x8a, 0x31, 0x67, 0xa5, 0x95, 0xec, 0x2d, 0x4d,
-    0x41, 0x08, 0x52, 0x3c, 0x26, 0x44, 0x3f, 0xca, 0xc8, 0xa3, 0x79, 0xc5,
-    0x56, 0x40, 0xc0, 0x62, 0x0d, 0x5c, 0xd4, 0xcf, 0x69, 0x22, 0x05, 0x94,
-    0xf2, 0x66, 0xcb, 0x1e, 0x8a, 0xdf, 0x98, 0xc4, 0xcd, 0x26, 0x4b, 0xd5,
-    0xc6, 0x3d, 0x08, 0xf5, 0x5a, 0xa7, 0xde, 0x21, 0xbe, 0x5d, 0x04, 0x94};
+    0x8d, 0x1d, 0x4b, 0x3a, 0x00, 0x47, 0x44, 0x58, 0x41, 0x20, 0x3a, 0x00,
+    0x47, 0x44, 0x59, 0x75, 0x6f, 0x70, 0x65, 0x6e, 0x64, 0x69, 0x63, 0x65,
+    0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x70, 0x33, 0x38,
+    0x34, 0x58, 0x60, 0xe4, 0x8c, 0x6b, 0x6b, 0x24, 0xb2, 0xc6, 0x17, 0xcf,
+    0xfb, 0xb0, 0x8b, 0x28, 0x81, 0x8c, 0xb7, 0xc0, 0xed, 0x46, 0x9d, 0xb7,
+    0xb6, 0x7f, 0xfd, 0xc6, 0xdd, 0xb8, 0x61, 0xb9, 0x03, 0xbc, 0x66, 0x01,
+    0xb2, 0x7e, 0x9d, 0x4e, 0x62, 0x7b, 0xb0, 0x41, 0x39, 0x81, 0x7f, 0x30,
+    0x64, 0x4e, 0x5b, 0x33, 0x22, 0x1c, 0xa4, 0xac, 0x88, 0x33, 0x87, 0xe1,
+    0x7b, 0x0f, 0xa1, 0x55, 0xaa, 0x8a, 0x4e, 0xbd, 0x50, 0xec, 0xc0, 0x35,
+    0x28, 0xb4, 0xaa, 0xaa, 0x2a, 0x78, 0x42, 0x5f, 0xcb, 0x76, 0xa7, 0x84,
+    0xa1, 0xca, 0xf2, 0xda, 0xdb, 0x14, 0x6a, 0x87, 0x05, 0x11, 0xa8, 0xfa,
+    0x09, 0x30, 0x9c};
 
 }  // namespace test
 }  // namespace dice
diff --git a/src/boringssl_cert_op.c b/src/boringssl_cert_op.c
index 432294c..9ece559 100644
--- a/src/boringssl_cert_op.c
+++ b/src/boringssl_cert_op.c
@@ -17,6 +17,7 @@
 // HKDF-SHA512, and Ed25519-SHA512.
 
 #include <stdint.h>
+#include <string.h>
 
 #include "dice/dice.h"
 #include "dice/ops.h"
@@ -41,6 +42,7 @@
   ASN1_OCTET_STRING* authority_hash;
   ASN1_OCTET_STRING* authority_descriptor;
   ASN1_ENUMERATED* mode;
+  ASN1_UTF8STRING* profile_name;
 } DiceExtensionAsn1;
 
 // clang-format off
@@ -52,6 +54,7 @@
     ASN1_EXP_OPT(DiceExtensionAsn1, authority_hash, ASN1_OCTET_STRING, 4),
     ASN1_EXP_OPT(DiceExtensionAsn1, authority_descriptor, ASN1_OCTET_STRING, 5),
     ASN1_EXP_OPT(DiceExtensionAsn1, mode, ASN1_ENUMERATED, 6),
+    ASN1_EXP_OPT(DiceExtensionAsn1, profile_name, ASN1_UTF8STRING, 7),
 } ASN1_SEQUENCE_END(DiceExtensionAsn1)
 DECLARE_ASN1_FUNCTIONS(DiceExtensionAsn1)
 IMPLEMENT_ASN1_FUNCTIONS(DiceExtensionAsn1)
@@ -426,6 +429,20 @@
     goto out;
   }
 
+  // Encode profile name.
+  if (DICE_PROFILE_NAME) {
+    asn1->profile_name = ASN1_UTF8STRING_new();
+    if (!asn1->profile_name) {
+      result = kDiceResultPlatformError;
+      goto out;
+    }
+    if (!ASN1_STRING_set(asn1->profile_name, DICE_PROFILE_NAME,
+                         strlen(DICE_PROFILE_NAME))) {
+      result = kDiceResultPlatformError;
+      goto out;
+    }
+  }
+
   *actual_size = i2d_DiceExtensionAsn1(asn1, NULL);
   if (buffer_size < *actual_size) {
     result = kDiceResultBufferTooSmall;
diff --git a/src/cbor_cert_op.c b/src/cbor_cert_op.c
index d0670de..4b6d171 100644
--- a/src/cbor_cert_op.c
+++ b/src/cbor_cert_op.c
@@ -172,6 +172,7 @@
   const int64_t kModeLabel = -4670551;
   const int64_t kSubjectPublicKeyLabel = -4670552;
   const int64_t kKeyUsageLabel = -4670553;
+  const int64_t kProfileNameLabel = -4670554;
   // Key usage constant per RFC 5280.
   const uint8_t kKeyUsageCertSign = 32;
 
@@ -188,6 +189,9 @@
   if (input_values->authority_descriptor_size > 0) {
     map_pairs += 1;
   }
+  if (DICE_PROFILE_NAME) {
+    map_pairs += 1;
+  }
 
   struct CborOut out;
   CborOutInit(buffer, buffer_size, &out);
@@ -247,6 +251,11 @@
   // Add the key usage.
   CborWriteInt(kKeyUsageLabel, &out);
   CborWriteBstr(/*data_size=*/1, &key_usage, &out);
+  // Add the profile name
+  if (DICE_PROFILE_NAME) {
+    CborWriteInt(kProfileNameLabel, &out);
+    CborWriteTstr(DICE_PROFILE_NAME, &out);
+  }
   *encoded_size = CborOutSize(&out);
   if (CborOutOverflowed(&out)) {
     return kDiceResultBufferTooSmall;
diff --git a/src/mbedtls_ops.c b/src/mbedtls_ops.c
index 4dbf2dd..b3d5e57 100644
--- a/src/mbedtls_ops.c
+++ b/src/mbedtls_ops.c
@@ -151,6 +151,45 @@
 }
 
 // Can be used with MBEDTLS_ASN1_CHK_ADD.
+static int WriteExplicitModeField(uint8_t tag, int value, uint8_t** pos,
+                                  uint8_t* start) {
+  // ASN.1 constants not defined by mbedtls.
+  const uint8_t kEnumTypeTag = 10;
+
+  int ret = 0;  // Used by MBEDTLS_ASN1_CHK_ADD.
+  int field_length = 0;
+  MBEDTLS_ASN1_CHK_ADD(field_length, mbedtls_asn1_write_int(pos, start, value));
+  // Overwrite the 'int' type.
+  ++(*pos);
+  --field_length;
+  MBEDTLS_ASN1_CHK_ADD(field_length,
+                       mbedtls_asn1_write_tag(pos, start, kEnumTypeTag));
+
+  // Explicitly tagged, so add the field tag too.
+  MBEDTLS_ASN1_CHK_ADD(field_length,
+                       mbedtls_asn1_write_len(pos, start, field_length));
+  MBEDTLS_ASN1_CHK_ADD(field_length,
+                       mbedtls_asn1_write_tag(pos, start, GetFieldTag(tag)));
+  return field_length;
+}
+
+// Can be used with MBEDTLS_ASN1_CHK_ADD.
+static int WriteExplicitUtf8StringField(uint8_t tag, const void* value,
+                                        size_t value_size, uint8_t** pos,
+                                        uint8_t* start) {
+  int ret = 0;  // Used by MBEDTLS_ASN1_CHK_ADD.
+  int field_length = 0;
+  MBEDTLS_ASN1_CHK_ADD(field_length, mbedtls_asn1_write_utf8_string(
+                                         pos, start, value, value_size));
+  // Explicitly tagged, so add the field tag too.
+  MBEDTLS_ASN1_CHK_ADD(field_length,
+                       mbedtls_asn1_write_len(pos, start, field_length));
+  MBEDTLS_ASN1_CHK_ADD(field_length,
+                       mbedtls_asn1_write_tag(pos, start, GetFieldTag(tag)));
+  return field_length;
+}
+
+// Can be used with MBEDTLS_ASN1_CHK_ADD.
 static int WriteExplicitOctetStringField(uint8_t tag, const uint8_t* value,
                                          size_t value_size, uint8_t** pos,
                                          uint8_t* start) {
@@ -168,8 +207,6 @@
 
 static int GetDiceExtensionDataHelper(const DiceInputValues* input_values,
                                       uint8_t** pos, uint8_t* start) {
-  // ASN.1 constants not defined by mbedtls.
-  const uint8_t kEnumTypeTag = 10;
   // ASN.1 tags for extension fields.
   const uint8_t kDiceFieldCodeHash = 0;
   const uint8_t kDiceFieldCodeDescriptor = 1;
@@ -178,24 +215,23 @@
   const uint8_t kDiceFieldAuthorityHash = 4;
   const uint8_t kDiceFieldAuthorityDescriptor = 5;
   const uint8_t kDiceFieldMode = 6;
+  const uint8_t kDiceFieldProfileName = 7;
 
   // Build up the extension ASN.1 in reverse order.
   int ret = 0;  // Used by MBEDTLS_ASN1_CHK_ADD.
   int length = 0;
 
-  // Add the mode field.
-  MBEDTLS_ASN1_CHK_ADD(length,
-                       mbedtls_asn1_write_int(pos, start, input_values->mode));
-  // Overwrite the 'int' type.
-  ++(*pos);
-  --length;
-  MBEDTLS_ASN1_CHK_ADD(length,
-                       mbedtls_asn1_write_tag(pos, start, kEnumTypeTag));
+  // Add the profile name field.
+  if (DICE_PROFILE_NAME) {
+    MBEDTLS_ASN1_CHK_ADD(length, WriteExplicitUtf8StringField(
+                                     kDiceFieldProfileName, DICE_PROFILE_NAME,
+                                     strlen(DICE_PROFILE_NAME), pos, start));
+  }
 
-  // Explicitly tagged, so add the field tag too.
-  MBEDTLS_ASN1_CHK_ADD(length, mbedtls_asn1_write_len(pos, start, length));
+  // Add the mode field.
   MBEDTLS_ASN1_CHK_ADD(
-      length, mbedtls_asn1_write_tag(pos, start, GetFieldTag(kDiceFieldMode)));
+      length,
+      WriteExplicitModeField(kDiceFieldMode, input_values->mode, pos, start));
 
   // Add the authorityDescriptor field, if applicable.
   if (input_values->authority_descriptor_size > 0) {
diff --git a/src/template_cbor_cert_op.c b/src/template_cbor_cert_op.c
index 641e83b..c935dfb 100644
--- a/src/template_cbor_cert_op.c
+++ b/src/template_cbor_cert_op.c
@@ -167,7 +167,7 @@
   // Variable length descriptors are not supported.
   if (input_values->code_descriptor_size > 0 ||
       input_values->config_type != kDiceConfigTypeInline ||
-      input_values->authority_descriptor_size > 0) {
+      input_values->authority_descriptor_size > 0 || DICE_PROFILE_NAME) {
     return kDiceResultInvalidInput;
   }
 
diff --git a/src/template_cert_op.c b/src/template_cert_op.c
index daa4317..7dcb16f 100644
--- a/src/template_cert_op.c
+++ b/src/template_cert_op.c
@@ -177,7 +177,7 @@
   // Variable length descriptors are not supported.
   if (input_values->code_descriptor_size > 0 ||
       input_values->config_type != kDiceConfigTypeInline ||
-      input_values->authority_descriptor_size > 0) {
+      input_values->authority_descriptor_size > 0 || DICE_PROFILE_NAME) {
     return kDiceResultInvalidInput;
   }
 
diff --git a/src/test_utils.cc b/src/test_utils.cc
index cb21d3f..12663cc 100644
--- a/src/test_utils.cc
+++ b/src/test_utils.cc
@@ -535,7 +535,7 @@
     return nullptr;
   }
   ScopedCbor cwt(cn_cbor_decode(payload->v.bytes, payload->length, &error));
-  if (cwt && cwt->type != CN_CBOR_MAP) {
+  if (!cwt || cwt->type != CN_CBOR_MAP) {
     return nullptr;
   }
   return cwt;