diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index de1f7eca7..e71a47d0b 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -1398,53 +1398,105 @@ X509 Certificate ASN1 (TBSCertificate, invalid Subject, 2nd AttributeTypeValue e
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
 x509parse_crt:"308198308182a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300e310c300806000c04546573743000302a300d06092A864886F70D010101050003190030160210ffffffffffffffffffffffffffffffff0202ffff300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_X509_INVALID_NAME + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
-X509 Certificate ASN1 (TBSCertificate, valid subject, no pubkeyinfo)
+X509 Certificate ASN1 (TBSCertificate, SubjectPublicKeyInfo missing)
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"30563054a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374":"":MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + MBEDTLS_ERR_ASN1_OUT_OF_DATA
+x509parse_crt:"30693054a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, no alg)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, invalid tag
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"30583056a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743000":"":MBEDTLS_ERR_PK_INVALID_ALG + MBEDTLS_ERR_ASN1_OUT_OF_DATA
+x509parse_crt:"306a3055a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a3008060013045465737400300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
 
-X509 Certificate ASN1 (TBSCertificate, valid subject, unknown pk alg)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, length missing
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"30673065a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374300f300d06092a864886f70d0101000500":"":MBEDTLS_ERR_PK_UNKNOWN_PK_ALG
+x509parse_crt:"306a3055a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a3008060013045465737430300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, no bitstring)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, invalid length encoding
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"30673065a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374300f300d06092a864886f70d0101010500":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_OUT_OF_DATA
+x509parse_crt:"306b3056a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743085300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + MBEDTLS_ERR_ASN1_INVALID_LENGTH
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, no bitstring data)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, length out of bounds
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"30693067a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743011300d06092a864886f70d01010105000300":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_INVALID_DATA
+x509parse_crt:"306b3056a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743001300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, invalid bitstring start)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, empty
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"306a3068a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743012300d06092a864886f70d0101010500030101":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_INVALID_DATA
+x509parse_crt:"306b3056a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743000300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_ALG + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, invalid internal bitstring length)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, invalid algorithm tag
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"306d306ba0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743015300d06092a864886f70d0101010500030400300000":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH
+x509parse_crt:"306c3057a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374300100300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_ALG + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, invalid internal bitstring tag)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, algorithm length missing
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"306d306ba0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743015300d06092a864886f70d0101010500030400310000":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
+x509parse_crt:"306c3057a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374300130300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_ALG + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, invalid mbedtls_mpi)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, algorithm invalid length encoding
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"30743072a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374301c300d06092a864886f70d0101010500030b0030080202ffff0302ffff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
+x509parse_crt:"306d3058a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a3008060013045465737430023085300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_ALG + MBEDTLS_ERR_ASN1_INVALID_LENGTH
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, total length mismatch)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, algorithm length out of bounds
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"30753073a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374301d300d06092a864886f70d0101010500030b0030080202ffff0202ffff00":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH
+x509parse_crt:"306d3058a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a3008060013045465737430023001300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_ALG + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, check failed)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, algorithm empty
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"30743072a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374301c300d06092a864886f70d0101010500030b0030080202ffff0202ffff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY
+x509parse_crt:"3081883073a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374301d300003190030160210ffffffffffffffffffffffffffffffff0202ffff300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_ALG + MBEDTLS_ERR_ASN1_OUT_OF_DATA
 
-X509 Certificate ASN1 (TBSCertificate, pubkey, check failed, expanded length notation)
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, algorithm unknown
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
-x509parse_crt:"308183308180a0030201028204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374302a300d06092a864886f70d010101050003190030160210fffffffffffffffffffffffffffffffe0202ffff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY
+x509parse_crt:"308196308180a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374302a300d06092A864886F70D010100050003190030160210ffffffffffffffffffffffffffffffff0202ffff300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_UNKNOWN_PK_ALG
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, bitstring missing
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"307a3065a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374300f300d06092A864886F70D0101010500300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_OUT_OF_DATA
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, bitstring invalid tag
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"307b3066a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743010300d06092a864886f70d010101050000300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, bitstring length missing
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"307b3066a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743010300d06092A864886F70D010101050003300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_OUT_OF_DATA
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, bitstring invalid length encoding
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"307c3067a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743011300d06092A864886F70D01010105000385300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_INVALID_LENGTH
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, bitstring length out of bounds
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"307c3067a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743011300d06092A864886F70D01010105000301300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_OUT_OF_DATA
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, no bitstring data
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"307c3067a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743011300d06092A864886F70D01010105000300300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_INVALID_DATA
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyInfo, invalid bitstring start
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"307d3068a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743012300d06092A864886F70D0101010500030101300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_INVALID_DATA
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyinfo, invalid internal bitstring length)
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"308180306ba0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743015300d06092A864886F70D0101010500030400300000300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyinfo, invalid internal bitstring tag)
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"308180306ba0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a300806001304546573743015300d06092A864886F70D0101010500030400310000300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyinfo, invalid RSA modulus)
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"3081873072a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374301c300d06092A864886F70D0101010500030b0030080202ffff0302ffff300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyinfo, total length mismatch)
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"3081893074a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374301e300d06092A864886F70D0101010500030b0030080202ffff0202ffff0500300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_LENGTH_MISMATCH
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyinfo, check failed)
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"3081873072a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374301c300d06092A864886F70D0101010500030b0030080202ffff0202ffff300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY
+
+X509 Certificate ASN1 (TBSCertificate, invalid SubjectPublicKeyinfo, check failed, expanded length notation)
+depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C
+x509parse_crt:"308196308180a0030201008204deadbeef300d06092a864886f70d01010b0500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374302a300d06092A864886F70D010101050003190030160210fffffffffffffffffffffffffffffffe0202ffff300d06092a864886f70d01010b0500030200ff":"":MBEDTLS_ERR_PK_INVALID_PUBKEY
 
 X509 Certificate ASN1 (TBSCertificate v3, Optional UIDs, Extensions not present)
 depends_on:MBEDTLS_RSA_C:MBEDTLS_SHA256_C