regex101: JSON RSA KEY PATTERN

1st Alternative(\s*\{(?:\s*"Modulus"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"Exponent"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"P"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"Q"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"DP"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"DQ"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"InverseQ"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(7)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"D"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)|,)|,)|,)|,)|,)|,)|,)()){8}\s*\}\s*\2\3\4\5\6\7\8\9)

Group 1(\s*\{(?:\s*"Modulus"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"Exponent"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"P"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"Q"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"DP"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"DQ"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"InverseQ"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(7)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"D"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)|,)|,)|,)|,)|,)|,)|,)()){8}\s*\}\s*\2\3\4\5\6\7\8\9)

\s*any whitespace character, repeated any number of times

\{the literal { (123₁₀ / 173₈ / 7B₁₆)

Non-Capturing Group(?:\s*"Modulus"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"Exponent"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"P"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"Q"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"DP"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"DQ"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"InverseQ"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(7)(?(9)|,)|,)|,)|,)|,)|,)|,)()|\s*"D"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(2)(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)|,)|,)|,)|,)|,)|,)|,)()){8}

{8}repeats the group contents below exactly 8 times:

1st Alternative\s*"Modulus"\s*:\s*"[a-zA-Z\d\+\/]+={0,2}"\s*(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)()

\s*any whitespace character, repeated any number of times

"Modulus"the literal text "Modulus" (case sensitive)

\s*any whitespace character, repeated any number of times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\s*any whitespace character, repeated any number of times

"the literal " (34₁₀ / 42₈ / 22₁₆)

Character Class[a-zA-Z\d\+\/]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

\da digit

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

={0,2}the literal = (61₁₀ / 75₈ / 3D₁₆) , repeated between 0 and 2 times

"the literal " (34₁₀ / 42₈ / 22₁₆)

\s*any whitespace character, repeated any number of times

Condition(?(3)(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)|,)

Uses the first branch if group 3 matched

If the condition is true, match this branch:(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)

Condition(?(4)(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)|,)

Uses the first branch if group 4 matched

If the condition is true, match this branch:(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)

Condition(?(5)(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)|,)

Uses the first branch if group 5 matched

If the condition is true, match this branch:(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)

Condition(?(6)(?(7)(?(8)(?(9)|,)|,)|,)|,)

Uses the first branch if group 6 matched

If the condition is true, match this branch:(?(7)(?(8)(?(9)|,)|,)|,)

Condition(?(7)(?(8)(?(9)|,)|,)|,)

Uses the first branch if group 7 matched

If the condition is true, match this branch:(?(8)(?(9)|,)|,)

Condition(?(8)(?(9)|,)|,)

Uses the first branch if group 8 matched

If the condition is true, match this branch:(?(9)|,)

Condition(?(9)|,)

Uses the first branch if group 9 matched

If the condition is true, match this branch: — matches an empty string