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GeneralRe: Securing the IT operations of a company Pin
Greg Utas25-Apr-21 12:26
professionalGreg Utas25-Apr-21 12:26 
GeneralRe: Securing the IT operations of a company Pin
Peter Adam27-Apr-21 7:48
professionalPeter Adam27-Apr-21 7:48 
GeneralRe: Securing the IT operations of a company Pin
Eddy Vluggen27-Apr-21 9:19
professionalEddy Vluggen27-Apr-21 9:19 
GeneralRe: Securing the IT operations of a company Pin
Peter Adam27-Apr-21 9:30
professionalPeter Adam27-Apr-21 9:30 
GeneralRe: Securing the IT operations of a company Pin
Eddy Vluggen27-Apr-21 10:41
professionalEddy Vluggen27-Apr-21 10:41 
GeneralRe: Securing the IT operations of a company Pin
raddevus24-Apr-21 11:16
mvaraddevus24-Apr-21 11:16 
GeneralRe: Securing the IT operations of a company Pin
Mycroft Holmes24-Apr-21 11:26
professionalMycroft Holmes24-Apr-21 11:26 
GeneralRe: Securing the IT operations of a company Pin
Peter_in_278024-Apr-21 15:51
professionalPeter_in_278024-Apr-21 15:51 
Back in the mid 1980s, very early days of EFT, I was involved in setting up the crypto infrastructure for a major independent player. Before the days of Diffie-Hellman etc, there was a requirement for link master keys (typically 2 x 56bit DES for EDE) to be manually entered in the other party's crypto box.
At least half of the big 4 banks just gave the left and right halves of each key to different people.
... Oh nice. I've got one half. I only need to try about 2^28 possibilities (which was just about feasible in those days) to crack the whole thing.
They got all s*itty when we insisted on three full length components to be entered separately, and XORed inside our secure box to make the actual key.
Reason for 3 not 2? So there is no leakage through the parity bits in the key. Each component can be odd parity, like the final key.
Drove them nuts, but afaik it was never compromised during the 15+ year lifetime of that system.
By the time the successor system was implemented, the whole crypto (and comms) landscape had shifted.

Cheers from an(other) old fart,
Peter
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012

GeneralRe: Securing the IT operations of a company Pin
AnotherKen27-Apr-21 5:52
professionalAnotherKen27-Apr-21 5:52 
General'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
BillWoodruff24-Apr-21 4:11
professionalBillWoodruff24-Apr-21 4:11 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Eddy Vluggen24-Apr-21 6:30
professionalEddy Vluggen24-Apr-21 6:30 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
OriginalGriff24-Apr-21 6:55
mveOriginalGriff24-Apr-21 6:55 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Eddy Vluggen24-Apr-21 7:15
professionalEddy Vluggen24-Apr-21 7:15 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
OriginalGriff24-Apr-21 7:37
mveOriginalGriff24-Apr-21 7:37 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
BillWoodruff24-Apr-21 9:16
professionalBillWoodruff24-Apr-21 9:16 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
OriginalGriff24-Apr-21 9:19
mveOriginalGriff24-Apr-21 9:19 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Jörgen Andersson24-Apr-21 10:13
professionalJörgen Andersson24-Apr-21 10:13 
QuestionRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Eddy Vluggen24-Apr-21 13:09
professionalEddy Vluggen24-Apr-21 13:09 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Eddy Vluggen24-Apr-21 9:37
professionalEddy Vluggen24-Apr-21 9:37 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Jörgen Andersson24-Apr-21 10:27
professionalJörgen Andersson24-Apr-21 10:27 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Eddy Vluggen24-Apr-21 10:46
professionalEddy Vluggen24-Apr-21 10:46 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Jörgen Andersson24-Apr-21 11:01
professionalJörgen Andersson24-Apr-21 11:01 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Eddy Vluggen24-Apr-21 11:47
professionalEddy Vluggen24-Apr-21 11:47 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
BillWoodruff24-Apr-21 9:42
professionalBillWoodruff24-Apr-21 9:42 
GeneralRe: 'Giant' may be a murderer, but, he's really, really, sorry, now ! Pin
Eddy Vluggen24-Apr-21 10:30
professionalEddy Vluggen24-Apr-21 10:30 

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