Paulus Pärssinen
@paulusparssinen.bsky.social
Reposted by Paulus Pärssinen
Sweet dreams with Mini Uni
October 5, 2025 at 1:12 PM
Sweet dreams with Mini Uni
Reposted by Paulus Pärssinen
1965 Cryptanalysis Training Workbook Released by the NSA
In the early 1960s, National Security Agency cryptanalyst and cryptanalysis instructor Lambros D. Callimahos coined the term "Stethoscope" to describe a diagnostic computer program used to unravel the internal structure of pre-computer…
In the early 1960s, National Security Agency cryptanalyst and cryptanalysis instructor Lambros D. Callimahos coined the term "Stethoscope" to describe a diagnostic computer program used to unravel the internal structure of pre-computer…
1965 Cryptanalysis Training Workbook Released by the NSA
In the early 1960s, National Security Agency cryptanalyst and cryptanalysis instructor Lambros D. Callimahos coined the term "Stethoscope" to describe a diagnostic computer program used to unravel the internal structure of pre-computer ciphertexts. The term appears in the newly declassified September 1965 document Cryptanalytic Diagnosis with the Aid of a Computer, which compiled 147 listings from this tool for Callimahos's…
www.schneier.com
September 2, 2025 at 11:09 AM
1965 Cryptanalysis Training Workbook Released by the NSA
In the early 1960s, National Security Agency cryptanalyst and cryptanalysis instructor Lambros D. Callimahos coined the term "Stethoscope" to describe a diagnostic computer program used to unravel the internal structure of pre-computer…
In the early 1960s, National Security Agency cryptanalyst and cryptanalysis instructor Lambros D. Callimahos coined the term "Stethoscope" to describe a diagnostic computer program used to unravel the internal structure of pre-computer…
Reposted by Paulus Pärssinen
Declassified CIA graphic from the 1980s that shows the Soviet military (and intelligence) presence abroad.
July 7, 2025 at 5:07 PM
Declassified CIA graphic from the 1980s that shows the Soviet military (and intelligence) presence abroad.
Reposted by Paulus Pärssinen
Recently declassified by the #NSA, an internal study from 1988 titled: "Fifty Years of Mathematical Cryptanalysis (1937-1987)" www.governmentattic.org/58docs/NSA50...
www.governmentattic.org
May 27, 2025 at 8:53 AM
Recently declassified by the #NSA, an internal study from 1988 titled: "Fifty Years of Mathematical Cryptanalysis (1937-1987)" www.governmentattic.org/58docs/NSA50...
Reposted by Paulus Pärssinen
Manual intercept operator, on duty with the War Office Y Group (WOYG) during the Second World War (from HW41/119)
May 29, 2025 at 3:14 PM
Manual intercept operator, on duty with the War Office Y Group (WOYG) during the Second World War (from HW41/119)
Reposted by Paulus Pärssinen
In memoriam: Cryptome co-founder John L. Young, who died March 28 at age 89 in New York City, was one of the early, under-recognized heroes of the digital age.
In Memoriam: John L. Young, Cryptome Co-Founder
John L. Young, who died March 28 at age 89 in New York City, was among the first people to see the need for an online library of official secrets, a place where the public could find out things that g...
www.eff.org
May 15, 2025 at 9:32 PM
In memoriam: Cryptome co-founder John L. Young, who died March 28 at age 89 in New York City, was one of the early, under-recognized heroes of the digital age.
VLF 26.35 kHz - FSK (50 Bd)
R 072102Z DEC 24
FM CTF 114
TO ALSUBLANT
ALSUBPAC
UNCLAS
SUBJ/SPORTS SCORES 07DEC2024/
R 072102Z DEC 24
FM CTF 114
TO ALSUBLANT
ALSUBPAC
UNCLAS
SUBJ/SPORTS SCORES 07DEC2024/
December 7, 2024 at 10:36 PM
VLF 26.35 kHz - FSK (50 Bd)
R 072102Z DEC 24
FM CTF 114
TO ALSUBLANT
ALSUBPAC
UNCLAS
SUBJ/SPORTS SCORES 07DEC2024/
R 072102Z DEC 24
FM CTF 114
TO ALSUBLANT
ALSUBPAC
UNCLAS
SUBJ/SPORTS SCORES 07DEC2024/
Reposted by Paulus Pärssinen
I'm Uni Claus! :3
うにクロース！
うにクロース！
November 29, 2024 at 1:38 PM
I'm Uni Claus! :3
うにクロース！
うにクロース！
Reposted by Paulus Pärssinen
When Uni was a kitten :3
子猫時代のうに
子猫時代のうに
November 26, 2024 at 1:33 PM
When Uni was a kitten :3
子猫時代のうに
子猫時代のうに
Reposted by Paulus Pärssinen
I'm here :3
ここにいるよ
ここにいるよ
November 21, 2024 at 1:23 PM
I'm here :3
ここにいるよ
ここにいるよ
Reposted by Paulus Pärssinen
Reposted by Paulus Pärssinen
When Uni was a kitten :3
October 17, 2024 at 12:37 PM
When Uni was a kitten :3