diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index 1e18861f8..9e96bd149 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -784,6 +784,7 @@ static const byte hashSha512hOid[] = {96, 134, 72, 1, 101, 3, 4, 2, 3};
 
 /* blkType */
 static const byte blkAes128CbcOid[] = {96, 134, 72, 1, 101, 3, 4, 1, 2};
+static const byte blkAes192CbcOid[] = {96, 134, 72, 1, 101, 3, 4, 1, 22};
 static const byte blkDesCbcOid[]  = {43, 14, 3, 2, 7};
 static const byte blkDes3CbcOid[] = {42, 134, 72, 134, 247, 13, 3, 7};
 
@@ -964,6 +965,10 @@ static const byte* OidFromId(word32 id, word32 type, word32* oidSz)
                     oid = blkAes128CbcOid;
                     *oidSz = sizeof(blkAes128CbcOid);
                     break;
+                case AES192CBCb:
+                    oid = blkAes192CbcOid;
+                    *oidSz = sizeof(blkAes192CbcOid);
+                    break;
                 case DESb:
                     oid = blkDesCbcOid;
                     *oidSz = sizeof(blkDesCbcOid);
diff --git a/wolfcrypt/src/pkcs7.c b/wolfcrypt/src/pkcs7.c
index 83056b56b..bca23a584 100644
--- a/wolfcrypt/src/pkcs7.c
+++ b/wolfcrypt/src/pkcs7.c
@@ -1192,7 +1192,8 @@ int wc_PKCS7_EncryptContent(int encryptOID, byte* key, int keySz,
     switch (encryptOID) {
 #ifndef NO_AES
         case AES128CBCb:
-            if (keySz != 16 || ivSz != AES_BLOCK_SIZE)
+        case AES192CBCb:
+            if (ivSz != AES_BLOCK_SIZE)
                 return BAD_FUNC_ARG;
 
             ret = wc_AesSetKey(&aes, key, keySz, iv, AES_ENCRYPTION);
@@ -1211,6 +1212,7 @@ int wc_PKCS7_EncryptContent(int encryptOID, byte* key, int keySz,
                 ret = wc_Des_CbcEncrypt(&des, out, in, inSz);
 
             break;
+
         case DES3b:
             if (keySz != DES3_KEYLEN || ivSz != DES_BLOCK_SIZE)
                 return BAD_FUNC_ARG;
@@ -1249,7 +1251,8 @@ int wc_PKCS7_DecryptContent(int encryptOID, byte* key, int keySz,
     switch (encryptOID) {
 #ifndef NO_AES
         case AES128CBCb:
-            if (keySz != 16 || ivSz != AES_BLOCK_SIZE)
+        case AES192CBCb:
+            if (ivSz != AES_BLOCK_SIZE)
                 return BAD_FUNC_ARG;
 
             ret = wc_AesSetKey(&aes, key, keySz, iv, AES_DECRYPTION);
@@ -1344,6 +1347,11 @@ int wc_PKCS7_EncodeEnvelopedData(PKCS7* pkcs7, byte* output, word32 outputSz)
             blockSz    = AES_BLOCK_SIZE;
             break;
 
+        case AES192CBCb:
+            blockKeySz = 24;
+            blockSz    = AES_BLOCK_SIZE;
+            break;
+
         case DESb:
             blockKeySz = DES_KEYLEN;
             blockSz    = DES_BLOCK_SIZE;
@@ -1791,6 +1799,11 @@ WOLFSSL_API int wc_PKCS7_DecodeEnvelopedData(PKCS7* pkcs7, byte* pkiMsg,
             expBlockSz = AES_BLOCK_SIZE;
             break;
 
+        case AES192CBCb:
+            blockKeySz = 24;
+            expBlockSz = AES_BLOCK_SIZE;
+            break;
+
         case DESb:
             blockKeySz = DES_KEYLEN;
             expBlockSz = DES_BLOCK_SIZE;
diff --git a/wolfcrypt/test/test.c b/wolfcrypt/test/test.c
index 2d1c1f526..9e5955af1 100644
--- a/wolfcrypt/test/test.c
+++ b/wolfcrypt/test/test.c
@@ -8538,8 +8538,8 @@ int pkcs7enveloped_test(void)
         0x72,0x6c,0x64
     };
 
-    pkcs7EnvelopedVector a, b;
-    pkcs7EnvelopedVector test_pkcs7env[2];
+    pkcs7EnvelopedVector a, b, c;
+    pkcs7EnvelopedVector test_pkcs7env[3];
     int times = sizeof(test_pkcs7env) / sizeof(pkcs7EnvelopedVector), i;
 
     /* read client cert and key in DER format */
@@ -8596,8 +8596,17 @@ int pkcs7enveloped_test(void)
     b.privateKeySz = (word32)privKeySz;
     b.outFileName  = "pkcs7envelopedDataAES128CBC.der";
 
+    c.content      = data;
+    c.contentSz    = (word32)sizeof(data);
+    c.contentOID   = DATA;
+    c.encryptOID   = AES192CBCb;
+    c.privateKey   = privKey;
+    c.privateKeySz = (word32)privKeySz;
+    c.outFileName  = "pkcs7envelopedDataAES192CBC.der";
+
     test_pkcs7env[0] = a;
     test_pkcs7env[1] = b;
+    test_pkcs7env[2] = c;
 
     for (i = 0; i < times; i++) {
         pkcs7.content     = (byte*)test_pkcs7env[i].content;
diff --git a/wolfssl/wolfcrypt/asn.h b/wolfssl/wolfcrypt/asn.h
index 4e6718637..00bef121c 100644
--- a/wolfssl/wolfcrypt/asn.h
+++ b/wolfssl/wolfcrypt/asn.h
@@ -228,6 +228,7 @@ enum Hash_Sum  {
 
 enum Block_Sum {
     AES128CBCb = 414,
+    AES192CBCb = 434,
     DESb       = 69,
     DES3b      = 652
 };