z/OS Cryptographic Services ICSF System Programmer's Guide
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Format of the token and object records

z/OS Cryptographic Services ICSF System Programmer's Guide
SA22-7520-17

Each z/OS PKCS #11 token record and token object record begins with the same 188 bytes of data. The remainder of the record is specific to the token or object.

Common section of the token and object records

Every record in the token data set, with the exception of the header record, begins with these 188 bytes of data.

Table 32. Format of the common section of the token and object records
Offset (decimal)Length of field (bytes)Description
072Handle of token or object
Bytes 0-31:
Token name
Bytes 32-39:
Sequence number
Byte 40:
Character "T" for token object
Bytes 41-43
Blank characters
Bytes 44-71:
Binary zeros
728Reserved for IBM's use
808The date that this record was created, in the format yyyymmdd
888The time that this record was created, in the format hhmmssth
968The most recent date that this record was updated, in the format yyyymmdd
1048The most recent time that this record was updated, in the format hhmmssth
1124Length of the entire TKDS record entry
11620Reserved for IBM's use
13652User data
188variableThe TKDS token or object (see mappings)

Format of the token-specific section of the token record

Each z/OS PKCS #11 token record begins with the 188 bytes. The remainder of the record contains the contents of the token. The mapping of the record shows the data beginning at offset 0, which is its offset into the token-specific portion of the record; however, that portion of the record is at an offset of 188 into the entire record.

Table 33. Format of the unique section of the token record
Offset (decimal)
188 +
Length of field (bytes)Description
04Eye catcher for token: "TOKN"
42Version number of structure: EBCDIC '00'
62Length of structure in bytes
84Reserved for IBM's use. Must be zeros.
128Last assigned sequence number
2032Manufacturer identification
5216Model
6816Serial number
848Date of the most recent update to this token, expressed as Coordinated Universal Time (UTC) in the format yyyymmdd. This includes any update to token information or to a token object.
928Time of the most recent update to this token, expressed as Coordinated Universal Time (UTC) in the format hhmmssth. This includes any update to token information or to a token object.
10044Reserved for IBM's use
144End of token

Format of the object-specific sections of the token object records

The following classes of objects can be associated with a z/OS PKCS #11 token:

  • Certificate
  • Public key
  • Private key
  • Secret key
  • Data objects
  • Domain parameters

The token object record for each begins with the common section described Common section of the token and object records, followed by a section specific to the class of object. Each of the object-specific sections begins with a 12-byte header record, followed by a variable-length section. Each 12-byte header contains a 4-byte flag field that has the same mapping for all classes of objects.

Table 34. Format of the token object flags This 4-byte flag field occurs in the object header section of each token object record.
Offset (decimal)Field nameDescription
Flag byte 1
Bit 0OBJ_IS_TOKOBJWhen on, the object is a token object. When off, the object is a session object.
Bit 1OBJ_IS_PRVOBJWhen on, the object is a private object. When off, the object is a public object.
Bit 2OBJ_IS_MODOBJWhen on, the object is modifiable.
Bit 3KEY_DERIVEWhen on, the key supports key derivation.
Bit 4KEY_LOCALWhen on, the key was generated locally.
Bit 5KEY_ENCRYPTWhen on, the key supports encryption.
Bit 6KEY_DECRYPTWhen on, the key supports decryption.
Bit 7KEY_VERIFYAWhen on, the key supports verification where the signature is an appendix to the data.
Flag byte 2
Bit 0KEY_VERIFYRWhen on, the key supports verification where the data is recovered from the signature
Bit 1KEY_SIGAWhen on, the key supports signatures where the signature is an appendix to the data.
Bit 2KEY_SIGRWhen on, the key supports signatures where the data is recovered from the signature.
Bit 3KEY_WRAPWhen on, the key supports wrapping.
Bit 4KEY_UNWRAPWhen on, the key supports unwrapping.
Bit 5KEY_EXTRACTWhen on, the key is extractable.
Bit 6KEY_IS_SENSITIVEWhen on, the key is sensitive.
Bit 7KEY_IS_ALWAYS_SENSITIVEWhen on, the SENSITIVE attribute (KEY_IS_SENSITIVE) is always true.
Flag byte 3
Bit 0KEY_NEVER_EXTRACTWhen on, the EXTRACTABLE attribute (KEY_EXTRACT) is never true. When off, the EXTRACTABLE attribute (KEY_EXTRACT) can be true.
Bit 1OBJ_IS_TRUSTEDWhen on, the certificate can be trusted for the application for which it was created.
Bit 2CERT_IS_DEFAULTWhen on, this is the default certificate.
Bit 3FIPS140When on, key is only to be used in a FIPS-compliant manner.
Bits 4-7Reserved for IBM's use
Flag byte 4
Bits 0-7Reserved for IBM's use
Table 35. Format of the token certificate object
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for certificate object: "CERT"
42Version: EBCDIC '00'
62Length of the object (in bytes)
84Flags (see Table 34)
Object type-specific section
124
TYPE attribute:
X'00000000': CKC_X_509
164Certificate category
0
Undefined
1
Token user
2
Certificate authority
3
Other entity
208Reserved for IBM's use
2832Reserved for IBM's use
602Length of SUBJECT attribute in bytes (aa)
622Length of ID attribute in bytes (bb)
642Length of ISSUER attribute in bytes (cc)
662Length of SERIAL_NUMBER attribute in bytes (dd)
682Length of VALUE attribute in bytes (ee)
702Length of LABEL attribute in bytes (ff)
722Length of APPLICATION attribute in bytes (gg)
7422Reserved for IBM's use
964Offset of SUBJECT attribute in bytes
1004Offset of ID attribute in bytes
1044Offset of ISSUER attribute in bytes
1084Offset of SERIAL_NUMBER attribute in bytes
1124Offset of VALUE attribute in bytes
1164Offset of LABEL attribute in bytes
1204Offset of APPLICATION attribute in bytes
12444Reserved for IBM's use
168aa + bb + cc + dd + ee + ff + ggCertificate attributes (variable length)
168 + aa + bb + cc + dd + ee + ff + ggEnd of certificate object
Table 36. Format of the token public key object (Version 0)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for public key object: "PUBK"
42Version: EBCDIC '00'
62Length of the object (in bytes)
84Flags (see Table 34)
Object type-specific section
124
TYPE attribute:
CKK_RSA
168Start date for the key, in the format yyyymmdd
248End date for the key, in the format yyyymmdd
324
Key generate mechanism:
CK_UNAVAILABLE_INFORMATION
3636Reserved
724Length in bits of modulus n
76256Modulus n
332256Reserved
588256Public exponent e
844256Reserved
11002Length of SUBJECT attribute in bytes (aa)
11022Length of ID attribute in bytes (bb)
11042Length of LABEL attribute in bytes (cc)
11062Length of APPLICATION attribute in bytes (dd)
110820Reserved
11284Offset of SUBJECT attribute in bytes
11324Offset of ID attribute in bytes
11364Offset of LABEL attribute in bytes
11404Offset of APPLICATION attribute in bytes
114440Reserved
1184aa+bb+cc+ddPublic key attributes (variable length)
1184+aa+bb+cc+ddEnd of public key object
Table 37. Format of the token public key object (Version 1)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for public key object: "PUBK"
42Version: EBCDIC '01'
62Length of the object (in bytes)
84Flags (see Table 34)
Object type-specific section
124
TYPE attribute:
CKK_RSA, CKK_DSA, CKK_EC, or CKK_DH
168Start date for the key, in the format yyyymmdd
248End date for the key, in the format yyyymmdd
324
Key generate mechanism:
CK_UNAVAILABLE_INFORMATION
3636Reserved
Algorithm-specific section (RSA)
724Length in bits of modulus n
76512Modulus n
588512Public exponent e
Algorithm-specific section (DSA)
724Length in bits of prime p
76128Reserved
204128Prime p
332128Reserved
460128Base g
588128Reserved
716128Value y
84420Reserved
86420Subprime q
884216Reserved
Algorithm-specific section (DH)
724Length in bits of prime p
76256Prime p
332256Base g
588256Value y
844256Reserved
Algorithm-specific section (EC)
724EC params curve constant -
x'00000001' secp192r1
     - { 1 2 840 10045 3 1 1 }
x'00000002' secp224r1
     - { 1 3 132 0 33 }
x'00000003' secp256r1
     - { 1 2 840 10045 3 1 7 }
x'00000004' secp384r1
     - { 1 3 132 0 34 }
x'00000005' secp521r1
     - { 1 3 132 0 35 }
x'00000006' brainpoolP160r1
     - { 1 3 36 3 3 2 8 1 1 1 }
x'00000007' brainpoolP192r1
     - { 1 3 36 3 3 2 8 1 1 3 }
x'00000008' brainpoolP224r1
     - { 1 3 36 3 3 2 8 1 1 5 }
x'00000009' brainpoolP256r1
     - { 1 3 36 3 3 2 8 1 1 7 }
x'0000000A' brainpoolP320r1
     - { 1 3 36 3 3 2 8 1 1 9 }
x'0000000B' brainpoolP384r1
     - { 1 3 36 3 3 2 8 1 1 11 }
x'0000000C' brainpoolP512r1
     - { 1 3 36 3 3 2 8 1 1 13 }
76128Reserved
204136EC point Q (DER encoded)
340760Reserved
Variable length attribute section
11002Length of SUBJECT attribute in bytes (aa)
11022Length of ID attribute in bytes (bb)
11042Length of LABEL attribute in bytes (cc)
11062Length of APPLICATION attribute in bytes (dd)
110820Reserved
11284Offset of SUBJECT attribute in bytes
11324Offset of ID attribute in bytes
11364Offset of LABEL attribute in bytes
11404Offset of APPLICATION attribute in bytes
114440Reserved
1184aa+bb+cc+ddPublic key attributes (variable length)
1184+aa+bb+cc+ddEnd of public key object
Table 38. Format of the token public key object (Version 2)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for public key object: "PUBK"
42Version: EBCDIC '02'
62Length of the object (in bytes)
84Flags (see Table 34)
Object type-specific section
124
TYPE attribute:
CKK_RSA, CKK_DSA, CKK_EC, or CKK_DH
168Start date for the key, in the format yyyymmdd
248End date for the key, in the format yyyymmdd
324
Key generate mechanism:
CK_UNAVAILABLE_INFORMATION
3636Reserved
Algorithm-specific section (RSA)
724Length in bits of modulus n
76512Modulus n
588512Public exponent e
Algorithm-specific section (DSA)
724Length in bits of prime p
76256Prime p
332256Base g
588256Value y
8448Reserved
85232Subprime q
884216Reserved
Algorithm-specific section (DH)
724Length in bits of prime p
76256Prime p
332256Base g
588256Value y
844256Reserved
Algorithm-specific section (EC)
724EC params curve constant -
x'00000001' secp192r1
     - { 1 2 840 10045 3 1 1 }
x'00000002' secp224r1
     - { 1 3 132 0 33 }
x'00000003' secp256r1
     - { 1 2 840 10045 3 1 7 }
x'00000004' secp384r1
     - { 1 3 132 0 34 }
x'00000005' secp521r1
     - { 1 3 132 0 35 }
x'00000006' brainpoolP160r1
     - { 1 3 36 3 3 2 8 1 1 1 }
x'00000007' brainpoolP192r1
     - { 1 3 36 3 3 2 8 1 1 3 }
x'00000008' brainpoolP224r1
     - { 1 3 36 3 3 2 8 1 1 5 }
x'00000009' brainpoolP256r1
     - { 1 3 36 3 3 2 8 1 1 7 }
x'0000000A' brainpoolP320r1
     - { 1 3 36 3 3 2 8 1 1 9 }
x'0000000B' brainpoolP384r1
     - { 1 3 36 3 3 2 8 1 1 11 }
x'0000000C' brainpoolP512r1
     - { 1 3 36 3 3 2 8 1 1 13 }
76128Reserved
204136EC point Q (DER encoded)
340760Reserved
Variable length attribute section
11002Length of SUBJECT attribute in bytes (aa)
11022Length of ID attribute in bytes (bb)
11042Length of LABEL attribute in bytes (cc)
11062Length of APPLICATION attribute in bytes (dd)
110820Reserved
11284Offset of SUBJECT attribute in bytes
11324Offset of ID attribute in bytes
11364Offset of LABEL attribute in bytes
11404Offset of APPLICATION attribute in bytes
114440Reserved
1184aa+bb+cc+ddPublic key attributes (variable length)
1184+aa+bb+cc+ddEnd of public key object
Table 39. Format of the token private key object (Version 0)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for private key object: "PRIV"
42Version: EBCDIC '00'
62Length of object (in bytes)
84Flags (see Table 34)
Object type-specific section
124
Type attribute: CKK_RSA
168Start date for the key (in the format yyyymmdd)
248End date for the key (in the format yyyymmdd)
324
Key generate mechanism:
CK_UNAVAILABLE_INFORMATION
3636Reserved
724Length in bits of modulus n
76256Modulus: modulus n
332256Reserved
588256Public exponent e
844256Reserved
110032Reserved
1132256Private exponent d
1388256Reserved
1644136Prime p
1780128Reserved
1908128Prime q
2036128Reserved
2172136Private exponent d modulo p-1
2300128Reserved
2428128Private exponent d modulo q-1
2556128Reserved
2684136CRT coefficient q-1 mod p
2820128 Reserved
29482Length of SUBJECT attribute in bytes (xx)
29502Length of ID attribute in bytes (yy)
29522Length of LABEL attribute in bytes (zz)
29542Length of APPLICATION attribute in bytes (ww)
295620Reserved
29764Offset of SUBJECT attribute in bytes
29804Offset of ID attribute in bytes
29844Offset of LABEL attribute in bytes
29884Offset of APPLICATION attribute in bytes
299240Reserved
3032xx+yy+zz+wwPrivate key attributes (variable length)
3032+xx+yy+zz+wwEnd of private key object
Table 40. Format of the token private key object (Version 1)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for private key object: "PRIV"
42Version: EBCDIC '01'
62Length of object (in bytes)
84Flags (see Table 34)
Object type-specific section
124
Type attribute: CKK_RSA, CKK_DSA,
CKK_EC, or CKK_DH
168Start date for the key (in the format yyyymmdd)
248End date for the key (in the format yyyymmdd)
324
Key generate mechanism:
CK_UNAVAILABLE_INFORMATION
3636Reserved
Algorithm-specific section (RSA)
724Length in bits of modulus n
76512Modulus: modulus n
588512Public exponent e
110032Reserved
1132512Private exponent d
1644264Prime p
1908256Prime q
2164264Private exponent d modulo p-1
2428256Private exponent d modulo q-1
2684264CRT coefficient q-1 mod p
Algorithm-specific section (DSA)
724Length in bits of prime p
76128Reserved
204128Prime p
332128Reserved
460128Base g
588236Reserved
82420Value x
84420Reserved
86420Subprime q
8842064Reserved
Algorithm-specific section (DH)
724Length in bits of prime p
76256Prime p
332256Base g
588236Reserved
82420Value x
8442104Reserved
Algorithm-specific section (EC)
724EC params curve constant -
x'00000001' secp192r1
     - { 1 2 840 10045 3 1 1 }
x'00000002' secp224r1
     - { 1 3 132 0 33 }
x'00000003' secp256r1
     - { 1 2 840 10045 3 1 7 }
x'00000004' secp384r1
     - { 1 3 132 0 34 }
x'00000005' secp521r1
     - { 1 3 132 0 35 }
x'00000006' brainpoolP160r1
     - { 1 3 36 3 3 2 8 1 1 1 }
x'00000007' brainpoolP192r1
     - { 1 3 36 3 3 2 8 1 1 3 }
x'00000008' brainpoolP224r1
     - { 1 3 36 3 3 2 8 1 1 5 }
x'00000009' brainpoolP256r1
     - { 1 3 36 3 3 2 8 1 1 7 }
x'0000000A' brainpoolP320r1
     - { 1 3 36 3 3 2 8 1 1 9 }
x'0000000B' brainpoolP384r1
     - { 1 3 36 3 3 2 8 1 1 11 }
x'0000000C' brainpoolP512r1
     - { 1 3 36 3 3 2 8 1 1 13 }
7664Reserved
14066Value d
2062742Reserved
Variable length attribute section
29482Length of SUBJECT attribute in bytes (xx)
29502Length of ID attribute in bytes (yy)
29522Length of LABEL attribute in bytes (zz)
29542Length of APPLICATION attribute in bytes (ww)
295620Reserved
29764Offset of SUBJECT attribute in bytes
29804Offset of ID attribute in bytes
29844Offset of LABEL attribute in bytes
29884Offset of APPLICATION attribute in bytes
299240Reserved
3032xx+yy+zz+wwPrivate key attributes (variable length)
3032+xx+yy+zz+wwEnd of private key object
Table 41. Format of the token private key object (Version 2)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for private key object: "PRIV"
42Version: EBCDIC '02'
62Length of object (in bytes)
84Flags (see Table 34)
Object type-specific section
124
Type attribute: CKK_RSA, CKK_DSA,
CKK_EC, or CKK_DH
168Start date for the key (in the format yyyymmdd)
248End date for the key (in the format yyyymmdd)
324
Key generate mechanism:
CK_UNAVAILABLE_INFORMATION
3636Reserved
Algorithm-specific section (RSA)
724Length in bits of modulus n
76512Modulus: modulus n
588512Public exponent e
110032Reserved
1132512Private exponent d
1644264Prime p
1908256Prime q
2164264Private exponent d modulo p-1
2428256Private exponent d modulo q-1
2684264CRT coefficient q-1 mod p
Algorithm-specific section (DSA)
724Length in bits of prime p
76256Prime p
332256Base g
588224Reserved
81232Value x
8448Reserved
85232Subprime q
8842064Reserved
Algorithm-specific section (DH)
724Length in bits of prime p
76256Prime p
332256Base g
588256Value x
8444Length in bits of value x
8482100Reserved
Algorithm-specific section (EC)
724EC params curve constant -
x'00000001' secp192r1
     - { 1 2 840 10045 3 1 1 }
x'00000002' secp224r1
     - { 1 3 132 0 33 }
x'00000003' secp256r1
     - { 1 2 840 10045 3 1 7 }
x'00000004' secp384r1
     - { 1 3 132 0 34 }
x'00000005' secp521r1
     - { 1 3 132 0 35 }
x'00000006' brainpoolP160r1
     - { 1 3 36 3 3 2 8 1 1 1 }
x'00000007' brainpoolP192r1
     - { 1 3 36 3 3 2 8 1 1 3 }
x'00000008' brainpoolP224r1
     - { 1 3 36 3 3 2 8 1 1 5 }
x'00000009' brainpoolP256r1
     - { 1 3 36 3 3 2 8 1 1 7 }
x'0000000A' brainpoolP320r1
     - { 1 3 36 3 3 2 8 1 1 9 }
x'0000000B' brainpoolP384r1
     - { 1 3 36 3 3 2 8 1 1 11 }
x'0000000C' brainpoolP512r1
     - { 1 3 36 3 3 2 8 1 1 13 }
7664Reserved
14066Value d
2062742Reserved
Variable length attribute section
29482Length of SUBJECT attribute in bytes (xx)
29502Length of ID attribute in bytes (yy)
29522Length of LABEL attribute in bytes (zz)
29542Length of APPLICATION attribute in bytes (ww)
295620Reserved
29764Offset of SUBJECT attribute in bytes
29804Offset of ID attribute in bytes
29844Offset of LABEL attribute in bytes
29884Offset of APPLICATION attribute in bytes
299240Reserved
3032xx+yy+zz+wwPrivate key attributes (variable length)
3032+xx+yy+zz+wwEnd of private key object
Table 42. Format of the token secret key object (Version 0)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for secret key object: "SECK"
42Version: EBCDIC '00'
62Length of the object in bytes
84Flags (see Table 34)
Object type-specific section
124Type of key: CKK_DES, CKK_DES2, CKK_DES3, CKK_AES
168Start date for the key (in the format yyyymmdd)
248End date for the key (in the format yyyymmdd)
324
Key generate mechanism
CK_UNAVAILABLE_INFORMATION
362Length of the key in bytes
3832Reserved
7064VALUE: value of the key
134538Reserved
6724Usage counter field
6762Reserved
6782Length of LABEL attribute in bytes (xx)
6802Length of APPLICATION attribute in bytes (yy)
6822Length of the ID attribute in bytes (zz)
68420Reserved
7044Offset of LABEL attribute in bytes
7084Offset of APPLICATION attribute in bytes
7124Offset of the ID attribute in bytes
71640Reserved
756xx+yy+zzSecret key attributes (variable length)
756+xx+yy+zzEnd of secret key object
Table 43. Format of the token secret key object (Version 1)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for secret key object: "SECK"
42Version: EBCDIC '01'
62Length of the object in bytes
84Flags (see Table 34)
Object type-specific section
124Type of key:

CKK_DES, CKK_DES2, CKK_DES3, CKK_BLOWFISH, CKK_RC4, CKK_GENERIC_SECRET, and CKK_AES.

168Start date for the key (in the format yyyymmdd)
248End date for the key (in the format yyyymmdd)
324
Key generate mechanism
CK_UNAVAILABLE_INFORMATION
362Length of the key in bytes
3832Reserved
70256VALUE: value of the key
326346Reserved
6724Usage counter field
6762Reserved
6782Length of LABEL attribute in bytes (xx)
6802Length of APPLICATION attribute in bytes (yy)
6822Length of the ID attribute in bytes (zz)
68420Reserved
7044Offset of LABEL attribute in bytes
7084Offset of APPLICATION attribute in bytes
7124Offset of the ID attribute in bytes
71640Reserved
756xx+yy+zzSecret key attributes (variable length)
756+xx+yy+zzEnd of secret key object
Table 44. Format of the token domain parameters object (Version 1)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for token domain object: "DOMP"
42Version: EBCDIC '01'
62Length of the object (in bytes)
84Flags (see Table 34)
Object type-specific section
124TYPE attribute: CKK_DSA or CKK_DH
1628Reserved
Algorithm-specific section (DSA)
444Length in bits of prime p
48128Reserved
176128Prime p
304128Reserved
432128Base g
56020Reserved
58020Subprime q
600636Reserved
Algorithm-specific section (DH)
444Length in bits of prime p
484Reserved
52256Prime p
308256Reserved
564256Base g
820416Reserved
Variable length attribute section
12362Length of LABEL attribute in bytes (aa)
12382Length of APPLICATION attribute in bytes (bb)
124020Reserved
12604Offset of LABEL attribute in bytes
12644Offset of APPLICATION attribute in bytes
126840Reserved
1308aa+bbDomain parameters attributes (variable length)
1308+aa+bbEnd of domain parameters object
Table 45. Format of the token domain parameters object (Version 2)
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for token domain object: "DOMP"
42Version: EBCDIC '02'
62Length of the object (in bytes)
84Flags (see Table 34)
Object type-specific section
124TYPE attribute: CKK_DSA or CKK_DH
1628Reserved
Algorithm-specific section (DSA)
444Length in bits of prime p
48256Prime p
304256Base g
5608Reserved
56832Subprime q
600636Reserved
Algorithm-specific section (DH)
444Length in bits of prime p
484Reserved
52256Prime p
308256Reserved
564256Base g
820416Reserved
Variable length attribute section
12362Length of LABEL attribute in bytes (aa)
12382Length of APPLICATION attribute in bytes (bb)
124020Reserved
12604Offset of LABEL attribute in bytes
12644Offset of APPLICATION attribute in bytes
126840Reserved
1308aa+bbDomain parameters attributes (variable length)
1308+aa+bbEnd of domain parameters object
Table 46. Format of the token data object
Offset (decimal)
188 +
Length of field (bytes)Description
Object header
04Eye catcher for data object: "DATA"
42Version: EBCDIC '00'
62Length of object, in bytes
84Flags (see Table 34)
Object type-specific section
124Reserved for IBM's use
1628Reserved for IBM's use
442Length of VALUE attribute in bytes (aa)
462Length of OBJECT_ID attribute in bytes (bb)
482Length of LABEL attribute in bytes (cc)
502Length of APPLICATION attribute in bytes (dd)
522Length of ID attribute in bytes (ee)
5422Reserved for IBM's use
764Offset of VALUE attribute in bytes
804Offset of OBJECT_ID attribute in bytes
844Offset of LABEL attribute in bytes
884Offset of APPLICATION attribute in bytes
924Offset of ID attribute in bytes
9644Reserved for IBM's use
140aa + bb + cc + dd + eeData attributes (variable length)
140 + aa + bb + cc + dd + eeEnd of data object

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